Home / 8,130.60-11,220-4,593.78

Finding the Fourth Proportional to 8,130.60, 11,220 and 4,593.78

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Solution

The fourth proportional to 8,130.60, 11,220 and 4,593.78 is: 6,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.60 : 11,220 = 4,593.78 : x
  2. Step 2: Convert to fraction form
    8,130.60/11,220 = 4,593.78/x
  3. Step 3: Cross multiply
    8,130.60x = 11,220 × 4,593.78
  4. Step 4: Simplify right side
    8,130.60x = 51,542,211.60
  5. Step 5: Solve for x
    x = 51,542,211.60/8,130.60
  6. Step 6: Final answer
    x = 6,339.29

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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.