Home / 13,149.23-19,711.08-5,249.46

Finding the Fourth Proportional to 13,149.23, 19,711.08 and 5,249.46

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Solution

The fourth proportional to 13,149.23, 19,711.08 and 5,249.46 is: 7,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.23 : 19,711.08 = 5,249.46 : x
  2. Step 2: Convert to fraction form
    13,149.23/19,711.08 = 5,249.46/x
  3. Step 3: Cross multiply
    13,149.23x = 19,711.08 × 5,249.46
  4. Step 4: Simplify right side
    13,149.23x = 103,472,526.02
  5. Step 5: Solve for x
    x = 103,472,526.02/13,149.23
  6. Step 6: Final answer
    x = 7,869.10

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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.