Home / 8,760.60-12,089.40-4,781.76

Finding the Fourth Proportional to 8,760.60, 12,089.40 and 4,781.76

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Solution

The fourth proportional to 8,760.60, 12,089.40 and 4,781.76 is: 6,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.60 : 12,089.40 = 4,781.76 : x
  2. Step 2: Convert to fraction form
    8,760.60/12,089.40 = 4,781.76/x
  3. Step 3: Cross multiply
    8,760.60x = 12,089.40 × 4,781.76
  4. Step 4: Simplify right side
    8,760.60x = 57,808,609.34
  5. Step 5: Solve for x
    x = 57,808,609.34/8,760.60
  6. Step 6: Final answer
    x = 6,598.70

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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.