Home / 10,427.82-15,640.11-3,030.75

Finding the Fourth Proportional to 10,427.82, 15,640.11 and 3,030.75

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Solution

The fourth proportional to 10,427.82, 15,640.11 and 3,030.75 is: 4,545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.82 : 15,640.11 = 3,030.75 : x
  2. Step 2: Convert to fraction form
    10,427.82/15,640.11 = 3,030.75/x
  3. Step 3: Cross multiply
    10,427.82x = 15,640.11 × 3,030.75
  4. Step 4: Simplify right side
    10,427.82x = 47,401,263.38
  5. Step 5: Solve for x
    x = 47,401,263.38/10,427.82
  6. Step 6: Final answer
    x = 4,545.65

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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.