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Finding the Fourth Proportional to 10,574.85, 15,850.83 and 6,879.72

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Solution

The fourth proportional to 10,574.85, 15,850.83 and 6,879.72 is: 10,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,574.85 : 15,850.83 = 6,879.72 : x
  2. Step 2: Convert to fraction form
    10,574.85/15,850.83 = 6,879.72/x
  3. Step 3: Cross multiply
    10,574.85x = 15,850.83 × 6,879.72
  4. Step 4: Simplify right side
    10,574.85x = 109,049,272.17
  5. Step 5: Solve for x
    x = 109,049,272.17/10,574.85
  6. Step 6: Final answer
    x = 10,312.13

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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.