Home / 8,988.90-12,401.02-5,445.96

Finding the Fourth Proportional to 8,988.90, 12,401.02 and 5,445.96

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Solution

The fourth proportional to 8,988.90, 12,401.02 and 5,445.96 is: 7,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.90 : 12,401.02 = 5,445.96 : x
  2. Step 2: Convert to fraction form
    8,988.90/12,401.02 = 5,445.96/x
  3. Step 3: Cross multiply
    8,988.90x = 12,401.02 × 5,445.96
  4. Step 4: Simplify right side
    8,988.90x = 67,535,458.88
  5. Step 5: Solve for x
    x = 67,535,458.88/8,988.90
  6. Step 6: Final answer
    x = 7,513.21

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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.