Home / 7,127.55-9,834.66-4,612.80

Finding the Fourth Proportional to 7,127.55, 9,834.66 and 4,612.80

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Solution

The fourth proportional to 7,127.55, 9,834.66 and 4,612.80 is: 6,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.55 : 9,834.66 = 4,612.80 : x
  2. Step 2: Convert to fraction form
    7,127.55/9,834.66 = 4,612.80/x
  3. Step 3: Cross multiply
    7,127.55x = 9,834.66 × 4,612.80
  4. Step 4: Simplify right side
    7,127.55x = 45,365,270.47
  5. Step 5: Solve for x
    x = 45,365,270.47/7,127.55
  6. Step 6: Final answer
    x = 6,364.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.