Home / 12,430.49-18,645.74-10,234.61

Finding the Fourth Proportional to 12,430.49, 18,645.74 and 10,234.61

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Solution

The fourth proportional to 12,430.49, 18,645.74 and 10,234.61 is: 15,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.49 : 18,645.74 = 10,234.61 : x
  2. Step 2: Convert to fraction form
    12,430.49/18,645.74 = 10,234.61/x
  3. Step 3: Cross multiply
    12,430.49x = 18,645.74 × 10,234.61
  4. Step 4: Simplify right side
    12,430.49x = 190,831,732.66
  5. Step 5: Solve for x
    x = 190,831,732.66/12,430.49
  6. Step 6: Final answer
    x = 15,351.91

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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.