Home / 18,341.47-27,521.58-8,735.21

Finding the Fourth Proportional to 18,341.47, 27,521.58 and 8,735.21

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Solution

The fourth proportional to 18,341.47, 27,521.58 and 8,735.21 is: 13,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.47 : 27,521.58 = 8,735.21 : x
  2. Step 2: Convert to fraction form
    18,341.47/27,521.58 = 8,735.21/x
  3. Step 3: Cross multiply
    18,341.47x = 27,521.58 × 8,735.21
  4. Step 4: Simplify right side
    18,341.47x = 240,406,780.83
  5. Step 5: Solve for x
    x = 240,406,780.83/18,341.47
  6. Step 6: Final answer
    x = 13,107.28

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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.