Home / 7,273.20-10,895.40-4,342.80

Finding the Fourth Proportional to 7,273.20, 10,895.40 and 4,342.80

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Solution

The fourth proportional to 7,273.20, 10,895.40 and 4,342.80 is: 6,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.20 : 10,895.40 = 4,342.80 : x
  2. Step 2: Convert to fraction form
    7,273.20/10,895.40 = 4,342.80/x
  3. Step 3: Cross multiply
    7,273.20x = 10,895.40 × 4,342.80
  4. Step 4: Simplify right side
    7,273.20x = 47,316,543.12
  5. Step 5: Solve for x
    x = 47,316,543.12/7,273.20
  6. Step 6: Final answer
    x = 6,505.60

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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.