Home / 8,820.50-12,151.62-6,578.15

Finding the Fourth Proportional to 8,820.50, 12,151.62 and 6,578.15

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Solution

The fourth proportional to 8,820.50, 12,151.62 and 6,578.15 is: 9,062.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.50 : 12,151.62 = 6,578.15 : x
  2. Step 2: Convert to fraction form
    8,820.50/12,151.62 = 6,578.15/x
  3. Step 3: Cross multiply
    8,820.50x = 12,151.62 × 6,578.15
  4. Step 4: Simplify right side
    8,820.50x = 79,935,118.34
  5. Step 5: Solve for x
    x = 79,935,118.34/8,820.50
  6. Step 6: Final answer
    x = 9,062.43

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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.