Home / 10,947.70-16,425.60-4,378.60

Finding the Fourth Proportional to 10,947.70, 16,425.60 and 4,378.60

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Solution

The fourth proportional to 10,947.70, 16,425.60 and 4,378.60 is: 6,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.70 : 16,425.60 = 4,378.60 : x
  2. Step 2: Convert to fraction form
    10,947.70/16,425.60 = 4,378.60/x
  3. Step 3: Cross multiply
    10,947.70x = 16,425.60 × 4,378.60
  4. Step 4: Simplify right side
    10,947.70x = 71,921,132.16
  5. Step 5: Solve for x
    x = 71,921,132.16/10,947.70
  6. Step 6: Final answer
    x = 6,569.52

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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.