Home / 8,708.60-13,065.16-3,777.12

Finding the Fourth Proportional to 8,708.60, 13,065.16 and 3,777.12

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Solution

The fourth proportional to 8,708.60, 13,065.16 and 3,777.12 is: 5,666.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.60 : 13,065.16 = 3,777.12 : x
  2. Step 2: Convert to fraction form
    8,708.60/13,065.16 = 3,777.12/x
  3. Step 3: Cross multiply
    8,708.60x = 13,065.16 × 3,777.12
  4. Step 4: Simplify right side
    8,708.60x = 49,348,677.14
  5. Step 5: Solve for x
    x = 49,348,677.14/8,708.60
  6. Step 6: Final answer
    x = 5,666.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.