Home / 13,789.28-19,029.62-7,502.08

Finding the Fourth Proportional to 13,789.28, 19,029.62 and 7,502.08

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Solution

The fourth proportional to 13,789.28, 19,029.62 and 7,502.08 is: 10,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.28 : 19,029.62 = 7,502.08 : x
  2. Step 2: Convert to fraction form
    13,789.28/19,029.62 = 7,502.08/x
  3. Step 3: Cross multiply
    13,789.28x = 19,029.62 × 7,502.08
  4. Step 4: Simplify right side
    13,789.28x = 142,761,731.61
  5. Step 5: Solve for x
    x = 142,761,731.61/13,789.28
  6. Step 6: Final answer
    x = 10,353.10

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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.