Home / 9,328.20-12,872.52-5,346.57

Finding the Fourth Proportional to 9,328.20, 12,872.52 and 5,346.57

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Solution

The fourth proportional to 9,328.20, 12,872.52 and 5,346.57 is: 7,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.20 : 12,872.52 = 5,346.57 : x
  2. Step 2: Convert to fraction form
    9,328.20/12,872.52 = 5,346.57/x
  3. Step 3: Cross multiply
    9,328.20x = 12,872.52 × 5,346.57
  4. Step 4: Simplify right side
    9,328.20x = 68,823,829.26
  5. Step 5: Solve for x
    x = 68,823,829.26/9,328.20
  6. Step 6: Final answer
    x = 7,378.04

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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.