Home / 11,133.60-15,356.97-7,159.74

Finding the Fourth Proportional to 11,133.60, 15,356.97 and 7,159.74

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Solution

The fourth proportional to 11,133.60, 15,356.97 and 7,159.74 is: 9,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.60 : 15,356.97 = 7,159.74 : x
  2. Step 2: Convert to fraction form
    11,133.60/15,356.97 = 7,159.74/x
  3. Step 3: Cross multiply
    11,133.60x = 15,356.97 × 7,159.74
  4. Step 4: Simplify right side
    11,133.60x = 109,951,912.39
  5. Step 5: Solve for x
    x = 109,951,912.39/11,133.60
  6. Step 6: Final answer
    x = 9,875.68

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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.