Home / 15,045.14-20,753.25-11,076.50

Finding the Fourth Proportional to 15,045.14, 20,753.25 and 11,076.50

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Solution

The fourth proportional to 15,045.14, 20,753.25 and 11,076.50 is: 15,278.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.14 : 20,753.25 = 11,076.50 : x
  2. Step 2: Convert to fraction form
    15,045.14/20,753.25 = 11,076.50/x
  3. Step 3: Cross multiply
    15,045.14x = 20,753.25 × 11,076.50
  4. Step 4: Simplify right side
    15,045.14x = 229,873,373.63
  5. Step 5: Solve for x
    x = 229,873,373.63/15,045.14
  6. Step 6: Final answer
    x = 15,278.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.