Home / 12,418.41-17,125.65-7,943.58

Finding the Fourth Proportional to 12,418.41, 17,125.65 and 7,943.58

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Solution

The fourth proportional to 12,418.41, 17,125.65 and 7,943.58 is: 10,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.41 : 17,125.65 = 7,943.58 : x
  2. Step 2: Convert to fraction form
    12,418.41/17,125.65 = 7,943.58/x
  3. Step 3: Cross multiply
    12,418.41x = 17,125.65 × 7,943.58
  4. Step 4: Simplify right side
    12,418.41x = 136,038,970.83
  5. Step 5: Solve for x
    x = 136,038,970.83/12,418.41
  6. Step 6: Final answer
    x = 10,954.62

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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.