Home / 10,447.08-15,670.74-4,209.90

Finding the Fourth Proportional to 10,447.08, 15,670.74 and 4,209.90

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Solution

The fourth proportional to 10,447.08, 15,670.74 and 4,209.90 is: 6,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.08 : 15,670.74 = 4,209.90 : x
  2. Step 2: Convert to fraction form
    10,447.08/15,670.74 = 4,209.90/x
  3. Step 3: Cross multiply
    10,447.08x = 15,670.74 × 4,209.90
  4. Step 4: Simplify right side
    10,447.08x = 65,972,248.33
  5. Step 5: Solve for x
    x = 65,972,248.33/10,447.08
  6. Step 6: Final answer
    x = 6,314.90

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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.