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Finding the Fourth Proportional to 6,860.05, 9,457.17 and 4,869.88

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Solution

The fourth proportional to 6,860.05, 9,457.17 and 4,869.88 is: 6,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.05 : 9,457.17 = 4,869.88 : x
  2. Step 2: Convert to fraction form
    6,860.05/9,457.17 = 4,869.88/x
  3. Step 3: Cross multiply
    6,860.05x = 9,457.17 × 4,869.88
  4. Step 4: Simplify right side
    6,860.05x = 46,055,283.04
  5. Step 5: Solve for x
    x = 46,055,283.04/6,860.05
  6. Step 6: Final answer
    x = 6,713.55

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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.