Home / 10,874.70-15,006.37-6,397.58

Finding the Fourth Proportional to 10,874.70, 15,006.37 and 6,397.58

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Solution

The fourth proportional to 10,874.70, 15,006.37 and 6,397.58 is: 8,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.70 : 15,006.37 = 6,397.58 : x
  2. Step 2: Convert to fraction form
    10,874.70/15,006.37 = 6,397.58/x
  3. Step 3: Cross multiply
    10,874.70x = 15,006.37 × 6,397.58
  4. Step 4: Simplify right side
    10,874.70x = 96,004,474.11
  5. Step 5: Solve for x
    x = 96,004,474.11/10,874.70
  6. Step 6: Final answer
    x = 8,828.24

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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.