Home / 18,101.13-24,977.53-10,142.20

Finding the Fourth Proportional to 18,101.13, 24,977.53 and 10,142.20

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Solution

The fourth proportional to 18,101.13, 24,977.53 and 10,142.20 is: 13,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.13 : 24,977.53 = 10,142.20 : x
  2. Step 2: Convert to fraction form
    18,101.13/24,977.53 = 10,142.20/x
  3. Step 3: Cross multiply
    18,101.13x = 24,977.53 × 10,142.20
  4. Step 4: Simplify right side
    18,101.13x = 253,327,104.77
  5. Step 5: Solve for x
    x = 253,327,104.77/18,101.13
  6. Step 6: Final answer
    x = 13,995.10

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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.