Home / 10,278.36-15,412.26-5,013.60

Finding the Fourth Proportional to 10,278.36, 15,412.26 and 5,013.60

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Solution

The fourth proportional to 10,278.36, 15,412.26 and 5,013.60 is: 7,517.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.36 : 15,412.26 = 5,013.60 : x
  2. Step 2: Convert to fraction form
    10,278.36/15,412.26 = 5,013.60/x
  3. Step 3: Cross multiply
    10,278.36x = 15,412.26 × 5,013.60
  4. Step 4: Simplify right side
    10,278.36x = 77,270,839.54
  5. Step 5: Solve for x
    x = 77,270,839.54/10,278.36
  6. Step 6: Final answer
    x = 7,517.82

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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.