Home / 18,618.75-25,693.92-10,235.79

Finding the Fourth Proportional to 18,618.75, 25,693.92 and 10,235.79

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Solution

The fourth proportional to 18,618.75, 25,693.92 and 10,235.79 is: 14,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.75 : 25,693.92 = 10,235.79 : x
  2. Step 2: Convert to fraction form
    18,618.75/25,693.92 = 10,235.79/x
  3. Step 3: Cross multiply
    18,618.75x = 25,693.92 × 10,235.79
  4. Step 4: Simplify right side
    18,618.75x = 262,997,569.40
  5. Step 5: Solve for x
    x = 262,997,569.40/18,618.75
  6. Step 6: Final answer
    x = 14,125.41

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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.