Home / 15,560.76-21,564.68-15,265.40

Finding the Fourth Proportional to 15,560.76, 21,564.68 and 15,265.40

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Solution

The fourth proportional to 15,560.76, 21,564.68 and 15,265.40 is: 21,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.76 : 21,564.68 = 15,265.40 : x
  2. Step 2: Convert to fraction form
    15,560.76/21,564.68 = 15,265.40/x
  3. Step 3: Cross multiply
    15,560.76x = 21,564.68 × 15,265.40
  4. Step 4: Simplify right side
    15,560.76x = 329,193,466.07
  5. Step 5: Solve for x
    x = 329,193,466.07/15,560.76
  6. Step 6: Final answer
    x = 21,155.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.