Home / 12,543.32-18,814.98-10,192.16

Finding the Fourth Proportional to 12,543.32, 18,814.98 and 10,192.16

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Solution

The fourth proportional to 12,543.32, 18,814.98 and 10,192.16 is: 15,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.32 : 18,814.98 = 10,192.16 : x
  2. Step 2: Convert to fraction form
    12,543.32/18,814.98 = 10,192.16/x
  3. Step 3: Cross multiply
    12,543.32x = 18,814.98 × 10,192.16
  4. Step 4: Simplify right side
    12,543.32x = 191,765,286.56
  5. Step 5: Solve for x
    x = 191,765,286.56/12,543.32
  6. Step 6: Final answer
    x = 15,288.24

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Similar ratio
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1.5x scale

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.