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Finding the Fourth Proportional to 7,159.05, 10,726.83 and 6,885.68

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Solution

The fourth proportional to 7,159.05, 10,726.83 and 6,885.68 is: 10,317.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.05 : 10,726.83 = 6,885.68 : x
  2. Step 2: Convert to fraction form
    7,159.05/10,726.83 = 6,885.68/x
  3. Step 3: Cross multiply
    7,159.05x = 10,726.83 × 6,885.68
  4. Step 4: Simplify right side
    7,159.05x = 73,861,465.16
  5. Step 5: Solve for x
    x = 73,861,465.16/7,159.05
  6. Step 6: Final answer
    x = 10,317.22

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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.