Home / 9,111.70-12,574.74-5,132.44

Finding the Fourth Proportional to 9,111.70, 12,574.74 and 5,132.44

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Solution

The fourth proportional to 9,111.70, 12,574.74 and 5,132.44 is: 7,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.70 : 12,574.74 = 5,132.44 : x
  2. Step 2: Convert to fraction form
    9,111.70/12,574.74 = 5,132.44/x
  3. Step 3: Cross multiply
    9,111.70x = 12,574.74 × 5,132.44
  4. Step 4: Simplify right side
    9,111.70x = 64,539,098.57
  5. Step 5: Solve for x
    x = 64,539,098.57/9,111.70
  6. Step 6: Final answer
    x = 7,083.10

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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.