Home / 19,149.28-26,428.40-10,765.80

Finding the Fourth Proportional to 19,149.28, 26,428.40 and 10,765.80

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Solution

The fourth proportional to 19,149.28, 26,428.40 and 10,765.80 is: 14,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.28 : 26,428.40 = 10,765.80 : x
  2. Step 2: Convert to fraction form
    19,149.28/26,428.40 = 10,765.80/x
  3. Step 3: Cross multiply
    19,149.28x = 26,428.40 × 10,765.80
  4. Step 4: Simplify right side
    19,149.28x = 284,522,868.72
  5. Step 5: Solve for x
    x = 284,522,868.72/19,149.28
  6. Step 6: Final answer
    x = 14,858.15

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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.