Home / 9,360.28-12,916.50-5,168.80

Finding the Fourth Proportional to 9,360.28, 12,916.50 and 5,168.80

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Solution

The fourth proportional to 9,360.28, 12,916.50 and 5,168.80 is: 7,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.28 : 12,916.50 = 5,168.80 : x
  2. Step 2: Convert to fraction form
    9,360.28/12,916.50 = 5,168.80/x
  3. Step 3: Cross multiply
    9,360.28x = 12,916.50 × 5,168.80
  4. Step 4: Simplify right side
    9,360.28x = 66,762,805.20
  5. Step 5: Solve for x
    x = 66,762,805.20/9,360.28
  6. Step 6: Final answer
    x = 7,132.56

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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.