Home / 10,129.23-13,976.64-6,766.65

Finding the Fourth Proportional to 10,129.23, 13,976.64 and 6,766.65

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Solution

The fourth proportional to 10,129.23, 13,976.64 and 6,766.65 is: 9,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.23 : 13,976.64 = 6,766.65 : x
  2. Step 2: Convert to fraction form
    10,129.23/13,976.64 = 6,766.65/x
  3. Step 3: Cross multiply
    10,129.23x = 13,976.64 × 6,766.65
  4. Step 4: Simplify right side
    10,129.23x = 94,575,031.06
  5. Step 5: Solve for x
    x = 94,575,031.06/10,129.23
  6. Step 6: Final answer
    x = 9,336.84

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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.