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Finding the Fourth Proportional to 8,739.76, 12,060.87 and 4,760.87

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Solution

The fourth proportional to 8,739.76, 12,060.87 and 4,760.87 is: 6,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.76 : 12,060.87 = 4,760.87 : x
  2. Step 2: Convert to fraction form
    8,739.76/12,060.87 = 4,760.87/x
  3. Step 3: Cross multiply
    8,739.76x = 12,060.87 × 4,760.87
  4. Step 4: Simplify right side
    8,739.76x = 57,420,191.71
  5. Step 5: Solve for x
    x = 57,420,191.71/8,739.76
  6. Step 6: Final answer
    x = 6,570.00

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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.