Home / 10,439.09-14,405.99-5,659.04

Finding the Fourth Proportional to 10,439.09, 14,405.99 and 5,659.04

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Solution

The fourth proportional to 10,439.09, 14,405.99 and 5,659.04 is: 7,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.09 : 14,405.99 = 5,659.04 : x
  2. Step 2: Convert to fraction form
    10,439.09/14,405.99 = 5,659.04/x
  3. Step 3: Cross multiply
    10,439.09x = 14,405.99 × 5,659.04
  4. Step 4: Simplify right side
    10,439.09x = 81,524,073.65
  5. Step 5: Solve for x
    x = 81,524,073.65/10,439.09
  6. Step 6: Final answer
    x = 7,809.50

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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.