Home / 14,778.32-20,393.28-8,404.05

Finding the Fourth Proportional to 14,778.32, 20,393.28 and 8,404.05

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Solution

The fourth proportional to 14,778.32, 20,393.28 and 8,404.05 is: 11,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.32 : 20,393.28 = 8,404.05 : x
  2. Step 2: Convert to fraction form
    14,778.32/20,393.28 = 8,404.05/x
  3. Step 3: Cross multiply
    14,778.32x = 20,393.28 × 8,404.05
  4. Step 4: Simplify right side
    14,778.32x = 171,386,233.08
  5. Step 5: Solve for x
    x = 171,386,233.08/14,778.32
  6. Step 6: Final answer
    x = 11,597.14

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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.