Home / 6,872.30-9,483.23-4,039.78

Finding the Fourth Proportional to 6,872.30, 9,483.23 and 4,039.78

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Solution

The fourth proportional to 6,872.30, 9,483.23 and 4,039.78 is: 5,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.30 : 9,483.23 = 4,039.78 : x
  2. Step 2: Convert to fraction form
    6,872.30/9,483.23 = 4,039.78/x
  3. Step 3: Cross multiply
    6,872.30x = 9,483.23 × 4,039.78
  4. Step 4: Simplify right side
    6,872.30x = 38,310,095.27
  5. Step 5: Solve for x
    x = 38,310,095.27/6,872.30
  6. Step 6: Final answer
    x = 5,574.57

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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.