Home / 10,431.95-14,391.26-9,238.15

Finding the Fourth Proportional to 10,431.95, 14,391.26 and 9,238.15

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Solution

The fourth proportional to 10,431.95, 14,391.26 and 9,238.15 is: 12,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.95 : 14,391.26 = 9,238.15 : x
  2. Step 2: Convert to fraction form
    10,431.95/14,391.26 = 9,238.15/x
  3. Step 3: Cross multiply
    10,431.95x = 14,391.26 × 9,238.15
  4. Step 4: Simplify right side
    10,431.95x = 132,948,618.57
  5. Step 5: Solve for x
    x = 132,948,618.57/10,431.95
  6. Step 6: Final answer
    x = 12,744.37

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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.