Home / 16,386.60-24,579.90-6,520.80

Finding the Fourth Proportional to 16,386.60, 24,579.90 and 6,520.80

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Solution

The fourth proportional to 16,386.60, 24,579.90 and 6,520.80 is: 9,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,386.60 : 24,579.90 = 6,520.80 : x
  2. Step 2: Convert to fraction form
    16,386.60/24,579.90 = 6,520.80/x
  3. Step 3: Cross multiply
    16,386.60x = 24,579.90 × 6,520.80
  4. Step 4: Simplify right side
    16,386.60x = 160,280,611.92
  5. Step 5: Solve for x
    x = 160,280,611.92/16,386.60
  6. Step 6: Final answer
    x = 9,781.20

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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.