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Finding the Fourth Proportional to 10,305.65, 15,446.13 and 6,749.55

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Solution

The fourth proportional to 10,305.65, 15,446.13 and 6,749.55 is: 10,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.65 : 15,446.13 = 6,749.55 : x
  2. Step 2: Convert to fraction form
    10,305.65/15,446.13 = 6,749.55/x
  3. Step 3: Cross multiply
    10,305.65x = 15,446.13 × 6,749.55
  4. Step 4: Simplify right side
    10,305.65x = 104,254,426.74
  5. Step 5: Solve for x
    x = 104,254,426.74/10,305.65
  6. Step 6: Final answer
    x = 10,116.24

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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.