Home / 13,876.31-19,149.28-7,502.90

Finding the Fourth Proportional to 13,876.31, 19,149.28 and 7,502.90

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Solution

The fourth proportional to 13,876.31, 19,149.28 and 7,502.90 is: 10,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.31 : 19,149.28 = 7,502.90 : x
  2. Step 2: Convert to fraction form
    13,876.31/19,149.28 = 7,502.90/x
  3. Step 3: Cross multiply
    13,876.31x = 19,149.28 × 7,502.90
  4. Step 4: Simplify right side
    13,876.31x = 143,675,018.41
  5. Step 5: Solve for x
    x = 143,675,018.41/13,876.31
  6. Step 6: Final answer
    x = 10,353.98

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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.