Home / 9,328.74-12,872.68-5,294.28

Finding the Fourth Proportional to 9,328.74, 12,872.68 and 5,294.28

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Solution

The fourth proportional to 9,328.74, 12,872.68 and 5,294.28 is: 7,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.74 : 12,872.68 = 5,294.28 : x
  2. Step 2: Convert to fraction form
    9,328.74/12,872.68 = 5,294.28/x
  3. Step 3: Cross multiply
    9,328.74x = 12,872.68 × 5,294.28
  4. Step 4: Simplify right side
    9,328.74x = 68,151,627.16
  5. Step 5: Solve for x
    x = 68,151,627.16/9,328.74
  6. Step 6: Final answer
    x = 7,305.56

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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.