Home / 16,219.60-24,280.80-9,642.40

Finding the Fourth Proportional to 16,219.60, 24,280.80 and 9,642.40

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Solution

The fourth proportional to 16,219.60, 24,280.80 and 9,642.40 is: 14,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,219.60 : 24,280.80 = 9,642.40 : x
  2. Step 2: Convert to fraction form
    16,219.60/24,280.80 = 9,642.40/x
  3. Step 3: Cross multiply
    16,219.60x = 24,280.80 × 9,642.40
  4. Step 4: Simplify right side
    16,219.60x = 234,125,185.92
  5. Step 5: Solve for x
    x = 234,125,185.92/16,219.60
  6. Step 6: Final answer
    x = 14,434.71

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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.