Home / 18,887.50-28,298.45-13,253.25

Finding the Fourth Proportional to 18,887.50, 28,298.45 and 13,253.25

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Solution

The fourth proportional to 18,887.50, 28,298.45 and 13,253.25 is: 19,856.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.50 : 28,298.45 = 13,253.25 : x
  2. Step 2: Convert to fraction form
    18,887.50/28,298.45 = 13,253.25/x
  3. Step 3: Cross multiply
    18,887.50x = 28,298.45 × 13,253.25
  4. Step 4: Simplify right side
    18,887.50x = 375,046,432.46
  5. Step 5: Solve for x
    x = 375,046,432.46/18,887.50
  6. Step 6: Final answer
    x = 19,856.86

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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.