Home / 11,291.43-15,581.55-6,255.25

Finding the Fourth Proportional to 11,291.43, 15,581.55 and 6,255.25

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Solution

The fourth proportional to 11,291.43, 15,581.55 and 6,255.25 is: 8,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.43 : 15,581.55 = 6,255.25 : x
  2. Step 2: Convert to fraction form
    11,291.43/15,581.55 = 6,255.25/x
  3. Step 3: Cross multiply
    11,291.43x = 15,581.55 × 6,255.25
  4. Step 4: Simplify right side
    11,291.43x = 97,466,490.64
  5. Step 5: Solve for x
    x = 97,466,490.64/11,291.43
  6. Step 6: Final answer
    x = 8,631.90

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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.