Home / 12,160.33-16,785.40-7,126.15

Finding the Fourth Proportional to 12,160.33, 16,785.40 and 7,126.15

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Solution

The fourth proportional to 12,160.33, 16,785.40 and 7,126.15 is: 9,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.33 : 16,785.40 = 7,126.15 : x
  2. Step 2: Convert to fraction form
    12,160.33/16,785.40 = 7,126.15/x
  3. Step 3: Cross multiply
    12,160.33x = 16,785.40 × 7,126.15
  4. Step 4: Simplify right side
    12,160.33x = 119,615,278.21
  5. Step 5: Solve for x
    x = 119,615,278.21/12,160.33
  6. Step 6: Final answer
    x = 9,836.52

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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.