Home / 18,115.95-25,001.06-10,157.55

Finding the Fourth Proportional to 18,115.95, 25,001.06 and 10,157.55

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Solution

The fourth proportional to 18,115.95, 25,001.06 and 10,157.55 is: 14,018.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.95 : 25,001.06 = 10,157.55 : x
  2. Step 2: Convert to fraction form
    18,115.95/25,001.06 = 10,157.55/x
  3. Step 3: Cross multiply
    18,115.95x = 25,001.06 × 10,157.55
  4. Step 4: Simplify right side
    18,115.95x = 253,949,513.09
  5. Step 5: Solve for x
    x = 253,949,513.09/18,115.95
  6. Step 6: Final answer
    x = 14,018.00

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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.