Home / 26,439.69-39,665-8,910.88

Finding the Fourth Proportional to 26,439.69, 39,665 and 8,910.88

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Solution

The fourth proportional to 26,439.69, 39,665 and 8,910.88 is: 13,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.69 : 39,665 = 8,910.88 : x
  2. Step 2: Convert to fraction form
    26,439.69/39,665 = 8,910.88/x
  3. Step 3: Cross multiply
    26,439.69x = 39,665 × 8,910.88
  4. Step 4: Simplify right side
    26,439.69x = 353,450,055.20
  5. Step 5: Solve for x
    x = 353,450,055.20/26,439.69
  6. Step 6: Final answer
    x = 13,368.16

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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.