Home / 11,060.47-15,252.87-8,538.40

Finding the Fourth Proportional to 11,060.47, 15,252.87 and 8,538.40

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Solution

The fourth proportional to 11,060.47, 15,252.87 and 8,538.40 is: 11,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,060.47 : 15,252.87 = 8,538.40 : x
  2. Step 2: Convert to fraction form
    11,060.47/15,252.87 = 8,538.40/x
  3. Step 3: Cross multiply
    11,060.47x = 15,252.87 × 8,538.40
  4. Step 4: Simplify right side
    11,060.47x = 130,235,105.21
  5. Step 5: Solve for x
    x = 130,235,105.21/11,060.47
  6. Step 6: Final answer
    x = 11,774.83

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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.