Home / 12,748.98-19,132.70-7,213.14

Finding the Fourth Proportional to 12,748.98, 19,132.70 and 7,213.14

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Solution

The fourth proportional to 12,748.98, 19,132.70 and 7,213.14 is: 10,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.98 : 19,132.70 = 7,213.14 : x
  2. Step 2: Convert to fraction form
    12,748.98/19,132.70 = 7,213.14/x
  3. Step 3: Cross multiply
    12,748.98x = 19,132.70 × 7,213.14
  4. Step 4: Simplify right side
    12,748.98x = 138,006,807.61
  5. Step 5: Solve for x
    x = 138,006,807.61/12,748.98
  6. Step 6: Final answer
    x = 10,824.93

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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.