Home / 7,118.08-10,672.96-4,780.80

Finding the Fourth Proportional to 7,118.08, 10,672.96 and 4,780.80

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Solution

The fourth proportional to 7,118.08, 10,672.96 and 4,780.80 is: 7,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.08 : 10,672.96 = 4,780.80 : x
  2. Step 2: Convert to fraction form
    7,118.08/10,672.96 = 4,780.80/x
  3. Step 3: Cross multiply
    7,118.08x = 10,672.96 × 4,780.80
  4. Step 4: Simplify right side
    7,118.08x = 51,025,287.17
  5. Step 5: Solve for x
    x = 51,025,287.17/7,118.08
  6. Step 6: Final answer
    x = 7,168.41

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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.