Home / 13,357.03-18,425.00-8,502.78

Finding the Fourth Proportional to 13,357.03, 18,425.00 and 8,502.78

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Solution

The fourth proportional to 13,357.03, 18,425.00 and 8,502.78 is: 11,728.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.03 : 18,425.00 = 8,502.78 : x
  2. Step 2: Convert to fraction form
    13,357.03/18,425.00 = 8,502.78/x
  3. Step 3: Cross multiply
    13,357.03x = 18,425.00 × 8,502.78
  4. Step 4: Simplify right side
    13,357.03x = 156,663,586.86
  5. Step 5: Solve for x
    x = 156,663,586.86/13,357.03
  6. Step 6: Final answer
    x = 11,728.93

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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.