Home / 11,134.60-15,358.35-7,160.74

Finding the Fourth Proportional to 11,134.60, 15,358.35 and 7,160.74

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Solution

The fourth proportional to 11,134.60, 15,358.35 and 7,160.74 is: 9,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.60 : 15,358.35 = 7,160.74 : x
  2. Step 2: Convert to fraction form
    11,134.60/15,358.35 = 7,160.74/x
  3. Step 3: Cross multiply
    11,134.60x = 15,358.35 × 7,160.74
  4. Step 4: Simplify right side
    11,134.60x = 109,977,151.18
  5. Step 5: Solve for x
    x = 109,977,151.18/11,134.60
  6. Step 6: Final answer
    x = 9,877.06

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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.