Home / 18,636.51-27,960.80-5,488.95

Finding the Fourth Proportional to 18,636.51, 27,960.80 and 5,488.95

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Solution

The fourth proportional to 18,636.51, 27,960.80 and 5,488.95 is: 8,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.51 : 27,960.80 = 5,488.95 : x
  2. Step 2: Convert to fraction form
    18,636.51/27,960.80 = 5,488.95/x
  3. Step 3: Cross multiply
    18,636.51x = 27,960.80 × 5,488.95
  4. Step 4: Simplify right side
    18,636.51x = 153,475,405.72
  5. Step 5: Solve for x
    x = 153,475,405.72/18,636.51
  6. Step 6: Final answer
    x = 8,235.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.