Home / 9,119.36-12,587.50-5,343.42

Finding the Fourth Proportional to 9,119.36, 12,587.50 and 5,343.42

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Solution

The fourth proportional to 9,119.36, 12,587.50 and 5,343.42 is: 7,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.36 : 12,587.50 = 5,343.42 : x
  2. Step 2: Convert to fraction form
    9,119.36/12,587.50 = 5,343.42/x
  3. Step 3: Cross multiply
    9,119.36x = 12,587.50 × 5,343.42
  4. Step 4: Simplify right side
    9,119.36x = 67,260,299.25
  5. Step 5: Solve for x
    x = 67,260,299.25/9,119.36
  6. Step 6: Final answer
    x = 7,375.55

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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.