Home / 18,885.24-26,052.86-15,113.72

Finding the Fourth Proportional to 18,885.24, 26,052.86 and 15,113.72

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Solution

The fourth proportional to 18,885.24, 26,052.86 and 15,113.72 is: 20,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.24 : 26,052.86 = 15,113.72 : x
  2. Step 2: Convert to fraction form
    18,885.24/26,052.86 = 15,113.72/x
  3. Step 3: Cross multiply
    18,885.24x = 26,052.86 × 15,113.72
  4. Step 4: Simplify right side
    18,885.24x = 393,755,734.16
  5. Step 5: Solve for x
    x = 393,755,734.16/18,885.24
  6. Step 6: Final answer
    x = 20,849.92

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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.