Home / 6,427.85-8,854.56-5,480.55

Finding the Fourth Proportional to 6,427.85, 8,854.56 and 5,480.55

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Solution

The fourth proportional to 6,427.85, 8,854.56 and 5,480.55 is: 7,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.85 : 8,854.56 = 5,480.55 : x
  2. Step 2: Convert to fraction form
    6,427.85/8,854.56 = 5,480.55/x
  3. Step 3: Cross multiply
    6,427.85x = 8,854.56 × 5,480.55
  4. Step 4: Simplify right side
    6,427.85x = 48,527,858.81
  5. Step 5: Solve for x
    x = 48,527,858.81/6,427.85
  6. Step 6: Final answer
    x = 7,549.63

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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.