Home / 10,280.40-15,423.04-3,711.36

Finding the Fourth Proportional to 10,280.40, 15,423.04 and 3,711.36

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Solution

The fourth proportional to 10,280.40, 15,423.04 and 3,711.36 is: 5,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.40 : 15,423.04 = 3,711.36 : x
  2. Step 2: Convert to fraction form
    10,280.40/15,423.04 = 3,711.36/x
  3. Step 3: Cross multiply
    10,280.40x = 15,423.04 × 3,711.36
  4. Step 4: Simplify right side
    10,280.40x = 57,240,453.73
  5. Step 5: Solve for x
    x = 57,240,453.73/10,280.40
  6. Step 6: Final answer
    x = 5,567.92

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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.