Home / 8,505.60-12,755.55-3,574.32

Finding the Fourth Proportional to 8,505.60, 12,755.55 and 3,574.32

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Solution

The fourth proportional to 8,505.60, 12,755.55 and 3,574.32 is: 5,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.60 : 12,755.55 = 3,574.32 : x
  2. Step 2: Convert to fraction form
    8,505.60/12,755.55 = 3,574.32/x
  3. Step 3: Cross multiply
    8,505.60x = 12,755.55 × 3,574.32
  4. Step 4: Simplify right side
    8,505.60x = 45,592,417.48
  5. Step 5: Solve for x
    x = 45,592,417.48/8,505.60
  6. Step 6: Final answer
    x = 5,360.28

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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.