Home / 10,661.98-15,998.74-4,426.26

Finding the Fourth Proportional to 10,661.98, 15,998.74 and 4,426.26

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Solution

The fourth proportional to 10,661.98, 15,998.74 and 4,426.26 is: 6,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.98 : 15,998.74 = 4,426.26 : x
  2. Step 2: Convert to fraction form
    10,661.98/15,998.74 = 4,426.26/x
  3. Step 3: Cross multiply
    10,661.98x = 15,998.74 × 4,426.26
  4. Step 4: Simplify right side
    10,661.98x = 70,814,582.91
  5. Step 5: Solve for x
    x = 70,814,582.91/10,661.98
  6. Step 6: Final answer
    x = 6,641.79

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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.