Home / 10,989.45-15,165.49-5,953.66

Finding the Fourth Proportional to 10,989.45, 15,165.49 and 5,953.66

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Solution

The fourth proportional to 10,989.45, 15,165.49 and 5,953.66 is: 8,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.45 : 15,165.49 = 5,953.66 : x
  2. Step 2: Convert to fraction form
    10,989.45/15,165.49 = 5,953.66/x
  3. Step 3: Cross multiply
    10,989.45x = 15,165.49 × 5,953.66
  4. Step 4: Simplify right side
    10,989.45x = 90,290,118.40
  5. Step 5: Solve for x
    x = 90,290,118.40/10,989.45
  6. Step 6: Final answer
    x = 8,216.07

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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.