Home / 10,436.48-15,656-4,279.68

Finding the Fourth Proportional to 10,436.48, 15,656 and 4,279.68

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Solution

The fourth proportional to 10,436.48, 15,656 and 4,279.68 is: 6,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.48 : 15,656 = 4,279.68 : x
  2. Step 2: Convert to fraction form
    10,436.48/15,656 = 4,279.68/x
  3. Step 3: Cross multiply
    10,436.48x = 15,656 × 4,279.68
  4. Step 4: Simplify right side
    10,436.48x = 67,002,670.08
  5. Step 5: Solve for x
    x = 67,002,670.08/10,436.48
  6. Step 6: Final answer
    x = 6,420.04

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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.