Home / 12,169.28-18,165.89-10,693.05

Finding the Fourth Proportional to 12,169.28, 18,165.89 and 10,693.05

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Solution

The fourth proportional to 12,169.28, 18,165.89 and 10,693.05 is: 15,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.28 : 18,165.89 = 10,693.05 : x
  2. Step 2: Convert to fraction form
    12,169.28/18,165.89 = 10,693.05/x
  3. Step 3: Cross multiply
    12,169.28x = 18,165.89 × 10,693.05
  4. Step 4: Simplify right side
    12,169.28x = 194,248,716.60
  5. Step 5: Solve for x
    x = 194,248,716.60/12,169.28
  6. Step 6: Final answer
    x = 15,962.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.