Home / 18,117.54-25,001.10-10,159.20

Finding the Fourth Proportional to 18,117.54, 25,001.10 and 10,159.20

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Solution

The fourth proportional to 18,117.54, 25,001.10 and 10,159.20 is: 14,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.54 : 25,001.10 = 10,159.20 : x
  2. Step 2: Convert to fraction form
    18,117.54/25,001.10 = 10,159.20/x
  3. Step 3: Cross multiply
    18,117.54x = 25,001.10 × 10,159.20
  4. Step 4: Simplify right side
    18,117.54x = 253,991,175.12
  5. Step 5: Solve for x
    x = 253,991,175.12/18,117.54
  6. Step 6: Final answer
    x = 14,019.08

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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.