Home / 14,839.18-20,478.10-8,124.86

Finding the Fourth Proportional to 14,839.18, 20,478.10 and 8,124.86

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Solution

The fourth proportional to 14,839.18, 20,478.10 and 8,124.86 is: 11,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.18 : 20,478.10 = 8,124.86 : x
  2. Step 2: Convert to fraction form
    14,839.18/20,478.10 = 8,124.86/x
  3. Step 3: Cross multiply
    14,839.18x = 20,478.10 × 8,124.86
  4. Step 4: Simplify right side
    14,839.18x = 166,381,695.57
  5. Step 5: Solve for x
    x = 166,381,695.57/14,839.18
  6. Step 6: Final answer
    x = 11,212.32

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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.