Home / 7,478.34-11,195.78-4,348.80

Finding the Fourth Proportional to 7,478.34, 11,195.78 and 4,348.80

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Solution

The fourth proportional to 7,478.34, 11,195.78 and 4,348.80 is: 6,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.34 : 11,195.78 = 4,348.80 : x
  2. Step 2: Convert to fraction form
    7,478.34/11,195.78 = 4,348.80/x
  3. Step 3: Cross multiply
    7,478.34x = 11,195.78 × 4,348.80
  4. Step 4: Simplify right side
    7,478.34x = 48,688,208.06
  5. Step 5: Solve for x
    x = 48,688,208.06/7,478.34
  6. Step 6: Final answer
    x = 6,510.56

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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.