Home / 9,349.28-12,900.96-5,156.48

Finding the Fourth Proportional to 9,349.28, 12,900.96 and 5,156.48

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Solution

The fourth proportional to 9,349.28, 12,900.96 and 5,156.48 is: 7,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.28 : 12,900.96 = 5,156.48 : x
  2. Step 2: Convert to fraction form
    9,349.28/12,900.96 = 5,156.48/x
  3. Step 3: Cross multiply
    9,349.28x = 12,900.96 × 5,156.48
  4. Step 4: Simplify right side
    9,349.28x = 66,523,542.22
  5. Step 5: Solve for x
    x = 66,523,542.22/9,349.28
  6. Step 6: Final answer
    x = 7,115.37

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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.