Home / 14,803.62-20,429.80-8,432.21

Finding the Fourth Proportional to 14,803.62, 20,429.80 and 8,432.21

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Solution

The fourth proportional to 14,803.62, 20,429.80 and 8,432.21 is: 11,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,803.62 : 20,429.80 = 8,432.21 : x
  2. Step 2: Convert to fraction form
    14,803.62/20,429.80 = 8,432.21/x
  3. Step 3: Cross multiply
    14,803.62x = 20,429.80 × 8,432.21
  4. Step 4: Simplify right side
    14,803.62x = 172,268,363.86
  5. Step 5: Solve for x
    x = 172,268,363.86/14,803.62
  6. Step 6: Final answer
    x = 11,636.91

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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.