Home / 10,957.88-16,428.22-4,712.78

Finding the Fourth Proportional to 10,957.88, 16,428.22 and 4,712.78

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Solution

The fourth proportional to 10,957.88, 16,428.22 and 4,712.78 is: 7,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.88 : 16,428.22 = 4,712.78 : x
  2. Step 2: Convert to fraction form
    10,957.88/16,428.22 = 4,712.78/x
  3. Step 3: Cross multiply
    10,957.88x = 16,428.22 × 4,712.78
  4. Step 4: Simplify right side
    10,957.88x = 77,422,615.94
  5. Step 5: Solve for x
    x = 77,422,615.94/10,957.88
  6. Step 6: Final answer
    x = 7,065.47

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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.