Home / 18,143.04-27,212.13-7,048.65

Finding the Fourth Proportional to 18,143.04, 27,212.13 and 7,048.65

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Solution

The fourth proportional to 18,143.04, 27,212.13 and 7,048.65 is: 10,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.04 : 27,212.13 = 7,048.65 : x
  2. Step 2: Convert to fraction form
    18,143.04/27,212.13 = 7,048.65/x
  3. Step 3: Cross multiply
    18,143.04x = 27,212.13 × 7,048.65
  4. Step 4: Simplify right side
    18,143.04x = 191,808,780.12
  5. Step 5: Solve for x
    x = 191,808,780.12/18,143.04
  6. Step 6: Final answer
    x = 10,572.03

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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.