Home / 10,220.35-15,309.06-4,947.79

Finding the Fourth Proportional to 10,220.35, 15,309.06 and 4,947.79

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Solution

The fourth proportional to 10,220.35, 15,309.06 and 4,947.79 is: 7,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.35 : 15,309.06 = 4,947.79 : x
  2. Step 2: Convert to fraction form
    10,220.35/15,309.06 = 4,947.79/x
  3. Step 3: Cross multiply
    10,220.35x = 15,309.06 × 4,947.79
  4. Step 4: Simplify right side
    10,220.35x = 75,746,013.98
  5. Step 5: Solve for x
    x = 75,746,013.98/10,220.35
  6. Step 6: Final answer
    x = 7,411.29

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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.