Home / 18,252.18-27,389.07-7,721.63

Finding the Fourth Proportional to 18,252.18, 27,389.07 and 7,721.63

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Solution

The fourth proportional to 18,252.18, 27,389.07 and 7,721.63 is: 11,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.18 : 27,389.07 = 7,721.63 : x
  2. Step 2: Convert to fraction form
    18,252.18/27,389.07 = 7,721.63/x
  3. Step 3: Cross multiply
    18,252.18x = 27,389.07 × 7,721.63
  4. Step 4: Simplify right side
    18,252.18x = 211,488,127.64
  5. Step 5: Solve for x
    x = 211,488,127.64/18,252.18
  6. Step 6: Final answer
    x = 11,587.01

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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.