Home / 10,989.75-15,165.92-5,954.01

Finding the Fourth Proportional to 10,989.75, 15,165.92 and 5,954.01

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Solution

The fourth proportional to 10,989.75, 15,165.92 and 5,954.01 is: 8,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.75 : 15,165.92 = 5,954.01 : x
  2. Step 2: Convert to fraction form
    10,989.75/15,165.92 = 5,954.01/x
  3. Step 3: Cross multiply
    10,989.75x = 15,165.92 × 5,954.01
  4. Step 4: Simplify right side
    10,989.75x = 90,298,009.57
  5. Step 5: Solve for x
    x = 90,298,009.57/10,989.75
  6. Step 6: Final answer
    x = 8,216.57

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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.