Home / 7,515.60-11,255.40-4,045.20

Finding the Fourth Proportional to 7,515.60, 11,255.40 and 4,045.20

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Solution

The fourth proportional to 7,515.60, 11,255.40 and 4,045.20 is: 6,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.60 : 11,255.40 = 4,045.20 : x
  2. Step 2: Convert to fraction form
    7,515.60/11,255.40 = 4,045.20/x
  3. Step 3: Cross multiply
    7,515.60x = 11,255.40 × 4,045.20
  4. Step 4: Simplify right side
    7,515.60x = 45,530,344.08
  5. Step 5: Solve for x
    x = 45,530,344.08/7,515.60
  6. Step 6: Final answer
    x = 6,058.11

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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.