Home / 15,335.28-21,162.60-9,366.12

Finding the Fourth Proportional to 15,335.28, 21,162.60 and 9,366.12

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Solution

The fourth proportional to 15,335.28, 21,162.60 and 9,366.12 is: 12,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.28 : 21,162.60 = 9,366.12 : x
  2. Step 2: Convert to fraction form
    15,335.28/21,162.60 = 9,366.12/x
  3. Step 3: Cross multiply
    15,335.28x = 21,162.60 × 9,366.12
  4. Step 4: Simplify right side
    15,335.28x = 198,211,451.11
  5. Step 5: Solve for x
    x = 198,211,451.11/15,335.28
  6. Step 6: Final answer
    x = 12,925.19

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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.