Home / 10,990.34-15,166.74-5,954.58

Finding the Fourth Proportional to 10,990.34, 15,166.74 and 5,954.58

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Solution

The fourth proportional to 10,990.34, 15,166.74 and 5,954.58 is: 8,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.34 : 15,166.74 = 5,954.58 : x
  2. Step 2: Convert to fraction form
    10,990.34/15,166.74 = 5,954.58/x
  3. Step 3: Cross multiply
    10,990.34x = 15,166.74 × 5,954.58
  4. Step 4: Simplify right side
    10,990.34x = 90,311,566.67
  5. Step 5: Solve for x
    x = 90,311,566.67/10,990.34
  6. Step 6: Final answer
    x = 8,217.36

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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.