Home / 11,071.92-15,278.61-6,355.89

Finding the Fourth Proportional to 11,071.92, 15,278.61 and 6,355.89

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Solution

The fourth proportional to 11,071.92, 15,278.61 and 6,355.89 is: 8,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.92 : 15,278.61 = 6,355.89 : x
  2. Step 2: Convert to fraction form
    11,071.92/15,278.61 = 6,355.89/x
  3. Step 3: Cross multiply
    11,071.92x = 15,278.61 × 6,355.89
  4. Step 4: Simplify right side
    11,071.92x = 97,109,164.51
  5. Step 5: Solve for x
    x = 97,109,164.51/11,071.92
  6. Step 6: Final answer
    x = 8,770.76

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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.