Home / 12,515.04-17,272.71-7,477.65

Finding the Fourth Proportional to 12,515.04, 17,272.71 and 7,477.65

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Solution

The fourth proportional to 12,515.04, 17,272.71 and 7,477.65 is: 10,320.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.04 : 17,272.71 = 7,477.65 : x
  2. Step 2: Convert to fraction form
    12,515.04/17,272.71 = 7,477.65/x
  3. Step 3: Cross multiply
    12,515.04x = 17,272.71 × 7,477.65
  4. Step 4: Simplify right side
    12,515.04x = 129,159,279.93
  5. Step 5: Solve for x
    x = 129,159,279.93/12,515.04
  6. Step 6: Final answer
    x = 10,320.32

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Half scale
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Double scale
Find fourth proportional to 12,516.04, 17,274.09 and 7,478.65
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.