Home / 18,753.62-28,116.56-11,356.34

Finding the Fourth Proportional to 18,753.62, 28,116.56 and 11,356.34

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Solution

The fourth proportional to 18,753.62, 28,116.56 and 11,356.34 is: 17,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.62 : 28,116.56 = 11,356.34 : x
  2. Step 2: Convert to fraction form
    18,753.62/28,116.56 = 11,356.34/x
  3. Step 3: Cross multiply
    18,753.62x = 28,116.56 × 11,356.34
  4. Step 4: Simplify right side
    18,753.62x = 319,301,214.99
  5. Step 5: Solve for x
    x = 319,301,214.99/18,753.62
  6. Step 6: Final answer
    x = 17,026.11

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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.