Home / 11,149.46-15,386.34-7,612.58

Finding the Fourth Proportional to 11,149.46, 15,386.34 and 7,612.58

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Solution

The fourth proportional to 11,149.46, 15,386.34 and 7,612.58 is: 10,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.46 : 15,386.34 = 7,612.58 : x
  2. Step 2: Convert to fraction form
    11,149.46/15,386.34 = 7,612.58/x
  3. Step 3: Cross multiply
    11,149.46x = 15,386.34 × 7,612.58
  4. Step 4: Simplify right side
    11,149.46x = 117,129,744.16
  5. Step 5: Solve for x
    x = 117,129,744.16/11,149.46
  6. Step 6: Final answer
    x = 10,505.42

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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.