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Finding the Fourth Proportional to 10,000.18, 13,807.02 and 7,727.32

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Solution

The fourth proportional to 10,000.18, 13,807.02 and 7,727.32 is: 10,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,000.18 : 13,807.02 = 7,727.32 : x
  2. Step 2: Convert to fraction form
    10,000.18/13,807.02 = 7,727.32/x
  3. Step 3: Cross multiply
    10,000.18x = 13,807.02 × 7,727.32
  4. Step 4: Simplify right side
    10,000.18x = 106,691,261.79
  5. Step 5: Solve for x
    x = 106,691,261.79/10,000.18
  6. Step 6: Final answer
    x = 10,668.93

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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.