Home / 12,389.14-18,572.76-9,480.43

Finding the Fourth Proportional to 12,389.14, 18,572.76 and 9,480.43

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Solution

The fourth proportional to 12,389.14, 18,572.76 and 9,480.43 is: 14,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.14 : 18,572.76 = 9,480.43 : x
  2. Step 2: Convert to fraction form
    12,389.14/18,572.76 = 9,480.43/x
  3. Step 3: Cross multiply
    12,389.14x = 18,572.76 × 9,480.43
  4. Step 4: Simplify right side
    12,389.14x = 176,077,751.09
  5. Step 5: Solve for x
    x = 176,077,751.09/12,389.14
  6. Step 6: Final answer
    x = 14,212.27

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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.