Home / 18,555.15-25,640.06-13,510.62

Finding the Fourth Proportional to 18,555.15, 25,640.06 and 13,510.62

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Solution

The fourth proportional to 18,555.15, 25,640.06 and 13,510.62 is: 18,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.15 : 25,640.06 = 13,510.62 : x
  2. Step 2: Convert to fraction form
    18,555.15/25,640.06 = 13,510.62/x
  3. Step 3: Cross multiply
    18,555.15x = 25,640.06 × 13,510.62
  4. Step 4: Simplify right side
    18,555.15x = 346,413,107.44
  5. Step 5: Solve for x
    x = 346,413,107.44/18,555.15
  6. Step 6: Final answer
    x = 18,669.38

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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.