Home / 10,947.15-16,421.54-3,552.80

Finding the Fourth Proportional to 10,947.15, 16,421.54 and 3,552.80

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Solution

The fourth proportional to 10,947.15, 16,421.54 and 3,552.80 is: 5,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.15 : 16,421.54 = 3,552.80 : x
  2. Step 2: Convert to fraction form
    10,947.15/16,421.54 = 3,552.80/x
  3. Step 3: Cross multiply
    10,947.15x = 16,421.54 × 3,552.80
  4. Step 4: Simplify right side
    10,947.15x = 58,342,347.44
  5. Step 5: Solve for x
    x = 58,342,347.44/10,947.15
  6. Step 6: Final answer
    x = 5,329.46

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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.