Home / 18,320.72-27,442.72-11,713.28

Finding the Fourth Proportional to 18,320.72, 27,442.72 and 11,713.28

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Solution

The fourth proportional to 18,320.72, 27,442.72 and 11,713.28 is: 17,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.72 : 27,442.72 = 11,713.28 : x
  2. Step 2: Convert to fraction form
    18,320.72/27,442.72 = 11,713.28/x
  3. Step 3: Cross multiply
    18,320.72x = 27,442.72 × 11,713.28
  4. Step 4: Simplify right side
    18,320.72x = 321,444,263.32
  5. Step 5: Solve for x
    x = 321,444,263.32/18,320.72
  6. Step 6: Final answer
    x = 17,545.39

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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.