Home / 25,605.11-38,407.61-7,137.11

Finding the Fourth Proportional to 25,605.11, 38,407.61 and 7,137.11

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Solution

The fourth proportional to 25,605.11, 38,407.61 and 7,137.11 is: 10,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,605.11 : 38,407.61 = 7,137.11 : x
  2. Step 2: Convert to fraction form
    25,605.11/38,407.61 = 7,137.11/x
  3. Step 3: Cross multiply
    25,605.11x = 38,407.61 × 7,137.11
  4. Step 4: Simplify right side
    25,605.11x = 274,119,109.68
  5. Step 5: Solve for x
    x = 274,119,109.68/25,605.11
  6. Step 6: Final answer
    x = 10,705.64

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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.