Home / 10,289.12-15,435.28-3,716.92

Finding the Fourth Proportional to 10,289.12, 15,435.28 and 3,716.92

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Solution

The fourth proportional to 10,289.12, 15,435.28 and 3,716.92 is: 5,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.12 : 15,435.28 = 3,716.92 : x
  2. Step 2: Convert to fraction form
    10,289.12/15,435.28 = 3,716.92/x
  3. Step 3: Cross multiply
    10,289.12x = 15,435.28 × 3,716.92
  4. Step 4: Simplify right side
    10,289.12x = 57,371,700.94
  5. Step 5: Solve for x
    x = 57,371,700.94/10,289.12
  6. Step 6: Final answer
    x = 5,575.96

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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.