Home / 15,186.30-22,769.55-13,631.10

Finding the Fourth Proportional to 15,186.30, 22,769.55 and 13,631.10

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Solution

The fourth proportional to 15,186.30, 22,769.55 and 13,631.10 is: 20,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.30 : 22,769.55 = 13,631.10 : x
  2. Step 2: Convert to fraction form
    15,186.30/22,769.55 = 13,631.10/x
  3. Step 3: Cross multiply
    15,186.30x = 22,769.55 × 13,631.10
  4. Step 4: Simplify right side
    15,186.30x = 310,374,013.01
  5. Step 5: Solve for x
    x = 310,374,013.01/15,186.30
  6. Step 6: Final answer
    x = 20,437.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.