Home / 13,298.20-18,330.66-9,099.16

Finding the Fourth Proportional to 13,298.20, 18,330.66 and 9,099.16

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Solution

The fourth proportional to 13,298.20, 18,330.66 and 9,099.16 is: 12,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.20 : 18,330.66 = 9,099.16 : x
  2. Step 2: Convert to fraction form
    13,298.20/18,330.66 = 9,099.16/x
  3. Step 3: Cross multiply
    13,298.20x = 18,330.66 × 9,099.16
  4. Step 4: Simplify right side
    13,298.20x = 166,793,608.25
  5. Step 5: Solve for x
    x = 166,793,608.25/13,298.20
  6. Step 6: Final answer
    x = 12,542.57

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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.