Home / 10,482.48-15,724.40-2,691.12

Finding the Fourth Proportional to 10,482.48, 15,724.40 and 2,691.12

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Solution

The fourth proportional to 10,482.48, 15,724.40 and 2,691.12 is: 4,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,482.48 : 15,724.40 = 2,691.12 : x
  2. Step 2: Convert to fraction form
    10,482.48/15,724.40 = 2,691.12/x
  3. Step 3: Cross multiply
    10,482.48x = 15,724.40 × 2,691.12
  4. Step 4: Simplify right side
    10,482.48x = 42,316,247.33
  5. Step 5: Solve for x
    x = 42,316,247.33/10,482.48
  6. Step 6: Final answer
    x = 4,036.85

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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.