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Finding the Fourth Proportional to 8,708.77, 13,079.96 and 7,462.18

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Solution

The fourth proportional to 8,708.77, 13,079.96 and 7,462.18 is: 11,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.77 : 13,079.96 = 7,462.18 : x
  2. Step 2: Convert to fraction form
    8,708.77/13,079.96 = 7,462.18/x
  3. Step 3: Cross multiply
    8,708.77x = 13,079.96 × 7,462.18
  4. Step 4: Simplify right side
    8,708.77x = 97,605,015.91
  5. Step 5: Solve for x
    x = 97,605,015.91/8,708.77
  6. Step 6: Final answer
    x = 11,207.67

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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.