Home / 9,129.36-12,598.20-5,598.48

Finding the Fourth Proportional to 9,129.36, 12,598.20 and 5,598.48

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Solution

The fourth proportional to 9,129.36, 12,598.20 and 5,598.48 is: 7,725.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.36 : 12,598.20 = 5,598.48 : x
  2. Step 2: Convert to fraction form
    9,129.36/12,598.20 = 5,598.48/x
  3. Step 3: Cross multiply
    9,129.36x = 12,598.20 × 5,598.48
  4. Step 4: Simplify right side
    9,129.36x = 70,530,770.74
  5. Step 5: Solve for x
    x = 70,530,770.74/9,129.36
  6. Step 6: Final answer
    x = 7,725.71

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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.