Home / 8,778.24-12,117.60-6,536.16

Finding the Fourth Proportional to 8,778.24, 12,117.60 and 6,536.16

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Solution

The fourth proportional to 8,778.24, 12,117.60 and 6,536.16 is: 9,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.24 : 12,117.60 = 6,536.16 : x
  2. Step 2: Convert to fraction form
    8,778.24/12,117.60 = 6,536.16/x
  3. Step 3: Cross multiply
    8,778.24x = 12,117.60 × 6,536.16
  4. Step 4: Simplify right side
    8,778.24x = 79,202,572.42
  5. Step 5: Solve for x
    x = 79,202,572.42/8,778.24
  6. Step 6: Final answer
    x = 9,022.60

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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.