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Finding the Fourth Proportional to 13,145.56, 19,711.80 and 6,575.56

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Solution

The fourth proportional to 13,145.56, 19,711.80 and 6,575.56 is: 9,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.56 : 19,711.80 = 6,575.56 : x
  2. Step 2: Convert to fraction form
    13,145.56/19,711.80 = 6,575.56/x
  3. Step 3: Cross multiply
    13,145.56x = 19,711.80 × 6,575.56
  4. Step 4: Simplify right side
    13,145.56x = 129,616,123.61
  5. Step 5: Solve for x
    x = 129,616,123.61/13,145.56
  6. Step 6: Final answer
    x = 9,860.07

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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.