Home / 10,285.41-15,428.12-3,711.59

Finding the Fourth Proportional to 10,285.41, 15,428.12 and 3,711.59

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Solution

The fourth proportional to 10,285.41, 15,428.12 and 3,711.59 is: 5,567.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.41 : 15,428.12 = 3,711.59 : x
  2. Step 2: Convert to fraction form
    10,285.41/15,428.12 = 3,711.59/x
  3. Step 3: Cross multiply
    10,285.41x = 15,428.12 × 3,711.59
  4. Step 4: Simplify right side
    10,285.41x = 57,262,760.21
  5. Step 5: Solve for x
    x = 57,262,760.21/10,285.41
  6. Step 6: Final answer
    x = 5,567.38

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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.