Home / 10,990.29-15,166.52-5,954.39

Finding the Fourth Proportional to 10,990.29, 15,166.52 and 5,954.39

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Solution

The fourth proportional to 10,990.29, 15,166.52 and 5,954.39 is: 8,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.29 : 15,166.52 = 5,954.39 : x
  2. Step 2: Convert to fraction form
    10,990.29/15,166.52 = 5,954.39/x
  3. Step 3: Cross multiply
    10,990.29x = 15,166.52 × 5,954.39
  4. Step 4: Simplify right side
    10,990.29x = 90,307,269.42
  5. Step 5: Solve for x
    x = 90,307,269.42/10,990.29
  6. Step 6: Final answer
    x = 8,217.01

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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.