Home / 12,516.04-17,274.09-7,478.65

Finding the Fourth Proportional to 12,516.04, 17,274.09 and 7,478.65

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Solution

The fourth proportional to 12,516.04, 17,274.09 and 7,478.65 is: 10,321.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.04 : 17,274.09 = 7,478.65 : x
  2. Step 2: Convert to fraction form
    12,516.04/17,274.09 = 7,478.65/x
  3. Step 3: Cross multiply
    12,516.04x = 17,274.09 × 7,478.65
  4. Step 4: Simplify right side
    12,516.04x = 129,186,873.18
  5. Step 5: Solve for x
    x = 129,186,873.18/12,516.04
  6. Step 6: Final answer
    x = 10,321.71

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Half scale
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Double scale
Find fourth proportional to 12,517.04, 17,275.47 and 7,479.65
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.