Home / 18,759.40-28,125.12-11,362.24

Finding the Fourth Proportional to 18,759.40, 28,125.12 and 11,362.24

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Solution

The fourth proportional to 18,759.40, 28,125.12 and 11,362.24 is: 17,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.40 : 28,125.12 = 11,362.24 : x
  2. Step 2: Convert to fraction form
    18,759.40/28,125.12 = 11,362.24/x
  3. Step 3: Cross multiply
    18,759.40x = 28,125.12 × 11,362.24
  4. Step 4: Simplify right side
    18,759.40x = 319,564,363.47
  5. Step 5: Solve for x
    x = 319,564,363.47/18,759.40
  6. Step 6: Final answer
    x = 17,034.89

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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.