Home / 9,135.04-13,680.48-5,227.60

Finding the Fourth Proportional to 9,135.04, 13,680.48 and 5,227.60

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Solution

The fourth proportional to 9,135.04, 13,680.48 and 5,227.60 is: 7,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.04 : 13,680.48 = 5,227.60 : x
  2. Step 2: Convert to fraction form
    9,135.04/13,680.48 = 5,227.60/x
  3. Step 3: Cross multiply
    9,135.04x = 13,680.48 × 5,227.60
  4. Step 4: Simplify right side
    9,135.04x = 71,516,077.25
  5. Step 5: Solve for x
    x = 71,516,077.25/9,135.04
  6. Step 6: Final answer
    x = 7,828.76

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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.