Home / 10,260.40-15,391.08-5,326.92

Finding the Fourth Proportional to 10,260.40, 15,391.08 and 5,326.92

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Solution

The fourth proportional to 10,260.40, 15,391.08 and 5,326.92 is: 7,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.40 : 15,391.08 = 5,326.92 : x
  2. Step 2: Convert to fraction form
    10,260.40/15,391.08 = 5,326.92/x
  3. Step 3: Cross multiply
    10,260.40x = 15,391.08 × 5,326.92
  4. Step 4: Simplify right side
    10,260.40x = 81,987,051.87
  5. Step 5: Solve for x
    x = 81,987,051.87/10,260.40
  6. Step 6: Final answer
    x = 7,990.63

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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.