Home / 10,979.28-16,461.36-3,957.66

Finding the Fourth Proportional to 10,979.28, 16,461.36 and 3,957.66

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Solution

The fourth proportional to 10,979.28, 16,461.36 and 3,957.66 is: 5,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.28 : 16,461.36 = 3,957.66 : x
  2. Step 2: Convert to fraction form
    10,979.28/16,461.36 = 3,957.66/x
  3. Step 3: Cross multiply
    10,979.28x = 16,461.36 × 3,957.66
  4. Step 4: Simplify right side
    10,979.28x = 65,148,466.02
  5. Step 5: Solve for x
    x = 65,148,466.02/10,979.28
  6. Step 6: Final answer
    x = 5,933.76

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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.