Home / 8,838.28-13,239.75-5,326.43

Finding the Fourth Proportional to 8,838.28, 13,239.75 and 5,326.43

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Solution

The fourth proportional to 8,838.28, 13,239.75 and 5,326.43 is: 7,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.28 : 13,239.75 = 5,326.43 : x
  2. Step 2: Convert to fraction form
    8,838.28/13,239.75 = 5,326.43/x
  3. Step 3: Cross multiply
    8,838.28x = 13,239.75 × 5,326.43
  4. Step 4: Simplify right side
    8,838.28x = 70,520,555.37
  5. Step 5: Solve for x
    x = 70,520,555.37/8,838.28
  6. Step 6: Final answer
    x = 7,978.99

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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.