Home / 10,869.10-16,279.35-9,411.10

Finding the Fourth Proportional to 10,869.10, 16,279.35 and 9,411.10

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Solution

The fourth proportional to 10,869.10, 16,279.35 and 9,411.10 is: 14,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.10 : 16,279.35 = 9,411.10 : x
  2. Step 2: Convert to fraction form
    10,869.10/16,279.35 = 9,411.10/x
  3. Step 3: Cross multiply
    10,869.10x = 16,279.35 × 9,411.10
  4. Step 4: Simplify right side
    10,869.10x = 153,206,590.79
  5. Step 5: Solve for x
    x = 153,206,590.79/10,869.10
  6. Step 6: Final answer
    x = 14,095.61

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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.