Home / 18,579.18-25,639.71-10,622.15

Finding the Fourth Proportional to 18,579.18, 25,639.71 and 10,622.15

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Solution

The fourth proportional to 18,579.18, 25,639.71 and 10,622.15 is: 14,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.18 : 25,639.71 = 10,622.15 : x
  2. Step 2: Convert to fraction form
    18,579.18/25,639.71 = 10,622.15/x
  3. Step 3: Cross multiply
    18,579.18x = 25,639.71 × 10,622.15
  4. Step 4: Simplify right side
    18,579.18x = 272,348,717.38
  5. Step 5: Solve for x
    x = 272,348,717.38/18,579.18
  6. Step 6: Final answer
    x = 14,658.81

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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.