Home / 18,754.52-28,117.76-11,357.19

Finding the Fourth Proportional to 18,754.52, 28,117.76 and 11,357.19

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Solution

The fourth proportional to 18,754.52, 28,117.76 and 11,357.19 is: 17,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.52 : 28,117.76 = 11,357.19 : x
  2. Step 2: Convert to fraction form
    18,754.52/28,117.76 = 11,357.19/x
  3. Step 3: Cross multiply
    18,754.52x = 28,117.76 × 11,357.19
  4. Step 4: Simplify right side
    18,754.52x = 319,338,685.91
  5. Step 5: Solve for x
    x = 319,338,685.91/18,754.52
  6. Step 6: Final answer
    x = 17,027.30

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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.