Home / 15,213.80-22,820.70-4,269.80

Finding the Fourth Proportional to 15,213.80, 22,820.70 and 4,269.80

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Solution

The fourth proportional to 15,213.80, 22,820.70 and 4,269.80 is: 6,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.80 : 22,820.70 = 4,269.80 : x
  2. Step 2: Convert to fraction form
    15,213.80/22,820.70 = 4,269.80/x
  3. Step 3: Cross multiply
    15,213.80x = 22,820.70 × 4,269.80
  4. Step 4: Simplify right side
    15,213.80x = 97,439,824.86
  5. Step 5: Solve for x
    x = 97,439,824.86/15,213.80
  6. Step 6: Final answer
    x = 6,404.70

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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.