Home / 9,110.90-12,574.23-5,132.78

Finding the Fourth Proportional to 9,110.90, 12,574.23 and 5,132.78

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Solution

The fourth proportional to 9,110.90, 12,574.23 and 5,132.78 is: 7,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.90 : 12,574.23 = 5,132.78 : x
  2. Step 2: Convert to fraction form
    9,110.90/12,574.23 = 5,132.78/x
  3. Step 3: Cross multiply
    9,110.90x = 12,574.23 × 5,132.78
  4. Step 4: Simplify right side
    9,110.90x = 64,540,756.26
  5. Step 5: Solve for x
    x = 64,540,756.26/9,110.90
  6. Step 6: Final answer
    x = 7,083.91

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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.