Home / 10,947.52-16,421.28-2,739.52

Finding the Fourth Proportional to 10,947.52, 16,421.28 and 2,739.52

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Solution

The fourth proportional to 10,947.52, 16,421.28 and 2,739.52 is: 4,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.52 : 16,421.28 = 2,739.52 : x
  2. Step 2: Convert to fraction form
    10,947.52/16,421.28 = 2,739.52/x
  3. Step 3: Cross multiply
    10,947.52x = 16,421.28 × 2,739.52
  4. Step 4: Simplify right side
    10,947.52x = 44,986,424.99
  5. Step 5: Solve for x
    x = 44,986,424.99/10,947.52
  6. Step 6: Final answer
    x = 4,109.28

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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.