Home / 10,289.35-15,424.78-3,713.99

Finding the Fourth Proportional to 10,289.35, 15,424.78 and 3,713.99

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Solution

The fourth proportional to 10,289.35, 15,424.78 and 3,713.99 is: 5,567.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.35 : 15,424.78 = 3,713.99 : x
  2. Step 2: Convert to fraction form
    10,289.35/15,424.78 = 3,713.99/x
  3. Step 3: Cross multiply
    10,289.35x = 15,424.78 × 3,713.99
  4. Step 4: Simplify right side
    10,289.35x = 57,287,478.67
  5. Step 5: Solve for x
    x = 57,287,478.67/10,289.35
  6. Step 6: Final answer
    x = 5,567.65

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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.