Home / 11,314.80-15,613.62-6,279.23

Finding the Fourth Proportional to 11,314.80, 15,613.62 and 6,279.23

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Solution

The fourth proportional to 11,314.80, 15,613.62 and 6,279.23 is: 8,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,314.80 : 15,613.62 = 6,279.23 : x
  2. Step 2: Convert to fraction form
    11,314.80/15,613.62 = 6,279.23/x
  3. Step 3: Cross multiply
    11,314.80x = 15,613.62 × 6,279.23
  4. Step 4: Simplify right side
    11,314.80x = 98,041,592.71
  5. Step 5: Solve for x
    x = 98,041,592.71/11,314.80
  6. Step 6: Final answer
    x = 8,664.90

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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.