Home / 7,108.74-9,812.43-4,877.04

Finding the Fourth Proportional to 7,108.74, 9,812.43 and 4,877.04

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Solution

The fourth proportional to 7,108.74, 9,812.43 and 4,877.04 is: 6,731.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.74 : 9,812.43 = 4,877.04 : x
  2. Step 2: Convert to fraction form
    7,108.74/9,812.43 = 4,877.04/x
  3. Step 3: Cross multiply
    7,108.74x = 9,812.43 × 4,877.04
  4. Step 4: Simplify right side
    7,108.74x = 47,855,613.61
  5. Step 5: Solve for x
    x = 47,855,613.61/7,108.74
  6. Step 6: Final answer
    x = 6,731.94

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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.