Home / 10,290.26-14,187.30-8,399.90

Finding the Fourth Proportional to 10,290.26, 14,187.30 and 8,399.90

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Solution

The fourth proportional to 10,290.26, 14,187.30 and 8,399.90 is: 11,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.26 : 14,187.30 = 8,399.90 : x
  2. Step 2: Convert to fraction form
    10,290.26/14,187.30 = 8,399.90/x
  3. Step 3: Cross multiply
    10,290.26x = 14,187.30 × 8,399.90
  4. Step 4: Simplify right side
    10,290.26x = 119,171,901.27
  5. Step 5: Solve for x
    x = 119,171,901.27/10,290.26
  6. Step 6: Final answer
    x = 11,581.04

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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.