Home / 10,217.28-15,326.88-3,977.76

Finding the Fourth Proportional to 10,217.28, 15,326.88 and 3,977.76

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Solution

The fourth proportional to 10,217.28, 15,326.88 and 3,977.76 is: 5,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.28 : 15,326.88 = 3,977.76 : x
  2. Step 2: Convert to fraction form
    10,217.28/15,326.88 = 3,977.76/x
  3. Step 3: Cross multiply
    10,217.28x = 15,326.88 × 3,977.76
  4. Step 4: Simplify right side
    10,217.28x = 60,966,650.19
  5. Step 5: Solve for x
    x = 60,966,650.19/10,217.28
  6. Step 6: Final answer
    x = 5,967.01

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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.