Home / 15,436.40-21,294.38-9,761.58

Finding the Fourth Proportional to 15,436.40, 21,294.38 and 9,761.58

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Solution

The fourth proportional to 15,436.40, 21,294.38 and 9,761.58 is: 13,466.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.40 : 21,294.38 = 9,761.58 : x
  2. Step 2: Convert to fraction form
    15,436.40/21,294.38 = 9,761.58/x
  3. Step 3: Cross multiply
    15,436.40x = 21,294.38 × 9,761.58
  4. Step 4: Simplify right side
    15,436.40x = 207,866,818.32
  5. Step 5: Solve for x
    x = 207,866,818.32/15,436.40
  6. Step 6: Final answer
    x = 13,466.02

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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.