Home / 14,982.60-20,680.10-8,697

Finding the Fourth Proportional to 14,982.60, 20,680.10 and 8,697

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Solution

The fourth proportional to 14,982.60, 20,680.10 and 8,697 is: 12,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,982.60 : 20,680.10 = 8,697 : x
  2. Step 2: Convert to fraction form
    14,982.60/20,680.10 = 8,697/x
  3. Step 3: Cross multiply
    14,982.60x = 20,680.10 × 8,697
  4. Step 4: Simplify right side
    14,982.60x = 179,854,829.70
  5. Step 5: Solve for x
    x = 179,854,829.70/14,982.60
  6. Step 6: Final answer
    x = 12,004.25

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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.