Home / 17,948.86-24,770.41-9,990.91

Finding the Fourth Proportional to 17,948.86, 24,770.41 and 9,990.91

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Solution

The fourth proportional to 17,948.86, 24,770.41 and 9,990.91 is: 13,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,948.86 : 24,770.41 = 9,990.91 : x
  2. Step 2: Convert to fraction form
    17,948.86/24,770.41 = 9,990.91/x
  3. Step 3: Cross multiply
    17,948.86x = 24,770.41 × 9,990.91
  4. Step 4: Simplify right side
    17,948.86x = 247,478,942.96
  5. Step 5: Solve for x
    x = 247,478,942.96/17,948.86
  6. Step 6: Final answer
    x = 13,788.01

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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.