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Finding the Fourth Proportional to 8,985.55, 13,478.36 and 4,049.46

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Solution

The fourth proportional to 8,985.55, 13,478.36 and 4,049.46 is: 6,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.55 : 13,478.36 = 4,049.46 : x
  2. Step 2: Convert to fraction form
    8,985.55/13,478.36 = 4,049.46/x
  3. Step 3: Cross multiply
    8,985.55x = 13,478.36 × 4,049.46
  4. Step 4: Simplify right side
    8,985.55x = 54,580,079.69
  5. Step 5: Solve for x
    x = 54,580,079.69/8,985.55
  6. Step 6: Final answer
    x = 6,074.21

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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.