Home / 12,505.28-18,721.47-10,834.25

Finding the Fourth Proportional to 12,505.28, 18,721.47 and 10,834.25

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Solution

The fourth proportional to 12,505.28, 18,721.47 and 10,834.25 is: 16,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.28 : 18,721.47 = 10,834.25 : x
  2. Step 2: Convert to fraction form
    12,505.28/18,721.47 = 10,834.25/x
  3. Step 3: Cross multiply
    12,505.28x = 18,721.47 × 10,834.25
  4. Step 4: Simplify right side
    12,505.28x = 202,833,086.35
  5. Step 5: Solve for x
    x = 202,833,086.35/12,505.28
  6. Step 6: Final answer
    x = 16,219.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.