Home / 9,398.10-12,960.43-5,620.66

Finding the Fourth Proportional to 9,398.10, 12,960.43 and 5,620.66

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Solution

The fourth proportional to 9,398.10, 12,960.43 and 5,620.66 is: 7,751.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.10 : 12,960.43 = 5,620.66 : x
  2. Step 2: Convert to fraction form
    9,398.10/12,960.43 = 5,620.66/x
  3. Step 3: Cross multiply
    9,398.10x = 12,960.43 × 5,620.66
  4. Step 4: Simplify right side
    9,398.10x = 72,846,170.48
  5. Step 5: Solve for x
    x = 72,846,170.48/9,398.10
  6. Step 6: Final answer
    x = 7,751.16

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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.