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Finding the Fourth Proportional to 9,008.55, 13,502.70 and 4,330.80

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Solution

The fourth proportional to 9,008.55, 13,502.70 and 4,330.80 is: 6,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.55 : 13,502.70 = 4,330.80 : x
  2. Step 2: Convert to fraction form
    9,008.55/13,502.70 = 4,330.80/x
  3. Step 3: Cross multiply
    9,008.55x = 13,502.70 × 4,330.80
  4. Step 4: Simplify right side
    9,008.55x = 58,477,493.16
  5. Step 5: Solve for x
    x = 58,477,493.16/9,008.55
  6. Step 6: Final answer
    x = 6,491.33

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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.