Home / 18,411.30-25,408.62-10,862.06

Finding the Fourth Proportional to 18,411.30, 25,408.62 and 10,862.06

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Solution

The fourth proportional to 18,411.30, 25,408.62 and 10,862.06 is: 14,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.30 : 25,408.62 = 10,862.06 : x
  2. Step 2: Convert to fraction form
    18,411.30/25,408.62 = 10,862.06/x
  3. Step 3: Cross multiply
    18,411.30x = 25,408.62 × 10,862.06
  4. Step 4: Simplify right side
    18,411.30x = 275,989,954.96
  5. Step 5: Solve for x
    x = 275,989,954.96/18,411.30
  6. Step 6: Final answer
    x = 14,990.25

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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.