Home / 9,031.20-13,557.60-5,085.60

Finding the Fourth Proportional to 9,031.20, 13,557.60 and 5,085.60

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Solution

The fourth proportional to 9,031.20, 13,557.60 and 5,085.60 is: 7,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,031.20 : 13,557.60 = 5,085.60 : x
  2. Step 2: Convert to fraction form
    9,031.20/13,557.60 = 5,085.60/x
  3. Step 3: Cross multiply
    9,031.20x = 13,557.60 × 5,085.60
  4. Step 4: Simplify right side
    9,031.20x = 68,948,530.56
  5. Step 5: Solve for x
    x = 68,948,530.56/9,031.20
  6. Step 6: Final answer
    x = 7,634.48

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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.