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Finding the Fourth Proportional to 18,384.64, 25,371 and 10,001.16

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Solution

The fourth proportional to 18,384.64, 25,371 and 10,001.16 is: 13,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.64 : 25,371 = 10,001.16 : x
  2. Step 2: Convert to fraction form
    18,384.64/25,371 = 10,001.16/x
  3. Step 3: Cross multiply
    18,384.64x = 25,371 × 10,001.16
  4. Step 4: Simplify right side
    18,384.64x = 253,739,430.36
  5. Step 5: Solve for x
    x = 253,739,430.36/18,384.64
  6. Step 6: Final answer
    x = 13,801.71

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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.