Home / 13,754.04-18,987.57-8,723.40

Finding the Fourth Proportional to 13,754.04, 18,987.57 and 8,723.40

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Solution

The fourth proportional to 13,754.04, 18,987.57 and 8,723.40 is: 12,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.04 : 18,987.57 = 8,723.40 : x
  2. Step 2: Convert to fraction form
    13,754.04/18,987.57 = 8,723.40/x
  3. Step 3: Cross multiply
    13,754.04x = 18,987.57 × 8,723.40
  4. Step 4: Simplify right side
    13,754.04x = 165,636,168.14
  5. Step 5: Solve for x
    x = 165,636,168.14/13,754.04
  6. Step 6: Final answer
    x = 12,042.73

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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.