Home / 9,428.97-14,121.81-5,259.78

Finding the Fourth Proportional to 9,428.97, 14,121.81 and 5,259.78

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Solution

The fourth proportional to 9,428.97, 14,121.81 and 5,259.78 is: 7,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.97 : 14,121.81 = 5,259.78 : x
  2. Step 2: Convert to fraction form
    9,428.97/14,121.81 = 5,259.78/x
  3. Step 3: Cross multiply
    9,428.97x = 14,121.81 × 5,259.78
  4. Step 4: Simplify right side
    9,428.97x = 74,277,613.80
  5. Step 5: Solve for x
    x = 74,277,613.80/9,428.97
  6. Step 6: Final answer
    x = 7,877.60

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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.