Home / 12,552.52-17,320.68-7,515.55

Finding the Fourth Proportional to 12,552.52, 17,320.68 and 7,515.55

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Solution

The fourth proportional to 12,552.52, 17,320.68 and 7,515.55 is: 10,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.52 : 17,320.68 = 7,515.55 : x
  2. Step 2: Convert to fraction form
    12,552.52/17,320.68 = 7,515.55/x
  3. Step 3: Cross multiply
    12,552.52x = 17,320.68 × 7,515.55
  4. Step 4: Simplify right side
    12,552.52x = 130,174,436.57
  5. Step 5: Solve for x
    x = 130,174,436.57/12,552.52
  6. Step 6: Final answer
    x = 10,370.38

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Half scale
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Double scale
Find fourth proportional to 12,553.52, 17,322.06 and 7,516.55
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.