Home / 10,657.20-14,708.34-6,121.65

Finding the Fourth Proportional to 10,657.20, 14,708.34 and 6,121.65

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Solution

The fourth proportional to 10,657.20, 14,708.34 and 6,121.65 is: 8,448.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657.20 : 14,708.34 = 6,121.65 : x
  2. Step 2: Convert to fraction form
    10,657.20/14,708.34 = 6,121.65/x
  3. Step 3: Cross multiply
    10,657.20x = 14,708.34 × 6,121.65
  4. Step 4: Simplify right side
    10,657.20x = 90,039,309.56
  5. Step 5: Solve for x
    x = 90,039,309.56/10,657.20
  6. Step 6: Final answer
    x = 8,448.68

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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.