Home / 9,279.48-13,907.10-8,106.66

Finding the Fourth Proportional to 9,279.48, 13,907.10 and 8,106.66

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Solution

The fourth proportional to 9,279.48, 13,907.10 and 8,106.66 is: 12,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.48 : 13,907.10 = 8,106.66 : x
  2. Step 2: Convert to fraction form
    9,279.48/13,907.10 = 8,106.66/x
  3. Step 3: Cross multiply
    9,279.48x = 13,907.10 × 8,106.66
  4. Step 4: Simplify right side
    9,279.48x = 112,740,131.29
  5. Step 5: Solve for x
    x = 112,740,131.29/9,279.48
  6. Step 6: Final answer
    x = 12,149.40

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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.