Home / 9,189.28-12,683.36-5,465.44

Finding the Fourth Proportional to 9,189.28, 12,683.36 and 5,465.44

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Solution

The fourth proportional to 9,189.28, 12,683.36 and 5,465.44 is: 7,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.28 : 12,683.36 = 5,465.44 : x
  2. Step 2: Convert to fraction form
    9,189.28/12,683.36 = 5,465.44/x
  3. Step 3: Cross multiply
    9,189.28x = 12,683.36 × 5,465.44
  4. Step 4: Simplify right side
    9,189.28x = 69,320,143.08
  5. Step 5: Solve for x
    x = 69,320,143.08/9,189.28
  6. Step 6: Final answer
    x = 7,543.59

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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.