Home / 10,712.28-16,141.62-8,807.16

Finding the Fourth Proportional to 10,712.28, 16,141.62 and 8,807.16

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Solution

The fourth proportional to 10,712.28, 16,141.62 and 8,807.16 is: 13,270.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.28 : 16,141.62 = 8,807.16 : x
  2. Step 2: Convert to fraction form
    10,712.28/16,141.62 = 8,807.16/x
  3. Step 3: Cross multiply
    10,712.28x = 16,141.62 × 8,807.16
  4. Step 4: Simplify right side
    10,712.28x = 142,161,830.00
  5. Step 5: Solve for x
    x = 142,161,830.00/10,712.28
  6. Step 6: Final answer
    x = 13,270.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.