Home / 9,328.92-12,873.66-5,137.20

Finding the Fourth Proportional to 9,328.92, 12,873.66 and 5,137.20

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Solution

The fourth proportional to 9,328.92, 12,873.66 and 5,137.20 is: 7,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.92 : 12,873.66 = 5,137.20 : x
  2. Step 2: Convert to fraction form
    9,328.92/12,873.66 = 5,137.20/x
  3. Step 3: Cross multiply
    9,328.92x = 12,873.66 × 5,137.20
  4. Step 4: Simplify right side
    9,328.92x = 66,134,566.15
  5. Step 5: Solve for x
    x = 66,134,566.15/9,328.92
  6. Step 6: Final answer
    x = 7,089.20

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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.