Home / 10,787.17-16,191.66-7,670.71

Finding the Fourth Proportional to 10,787.17, 16,191.66 and 7,670.71

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Solution

The fourth proportional to 10,787.17, 16,191.66 and 7,670.71 is: 11,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.17 : 16,191.66 = 7,670.71 : x
  2. Step 2: Convert to fraction form
    10,787.17/16,191.66 = 7,670.71/x
  3. Step 3: Cross multiply
    10,787.17x = 16,191.66 × 7,670.71
  4. Step 4: Simplify right side
    10,787.17x = 124,201,528.28
  5. Step 5: Solve for x
    x = 124,201,528.28/10,787.17
  6. Step 6: Final answer
    x = 11,513.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.