Home / 8,760.12-12,088.86-4,781.28

Finding the Fourth Proportional to 8,760.12, 12,088.86 and 4,781.28

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Solution

The fourth proportional to 8,760.12, 12,088.86 and 4,781.28 is: 6,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.12 : 12,088.86 = 4,781.28 : x
  2. Step 2: Convert to fraction form
    8,760.12/12,088.86 = 4,781.28/x
  3. Step 3: Cross multiply
    8,760.12x = 12,088.86 × 4,781.28
  4. Step 4: Simplify right side
    8,760.12x = 57,800,224.54
  5. Step 5: Solve for x
    x = 57,800,224.54/8,760.12
  6. Step 6: Final answer
    x = 6,598.11

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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.