Home / 18,580.29-25,640.88-10,622.79

Finding the Fourth Proportional to 18,580.29, 25,640.88 and 10,622.79

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Solution

The fourth proportional to 18,580.29, 25,640.88 and 10,622.79 is: 14,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.29 : 25,640.88 = 10,622.79 : x
  2. Step 2: Convert to fraction form
    18,580.29/25,640.88 = 10,622.79/x
  3. Step 3: Cross multiply
    18,580.29x = 25,640.88 × 10,622.79
  4. Step 4: Simplify right side
    18,580.29x = 272,377,683.66
  5. Step 5: Solve for x
    x = 272,377,683.66/18,580.29
  6. Step 6: Final answer
    x = 14,659.50

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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.