Home / 13,182.23-18,226.47-11,521.47

Finding the Fourth Proportional to 13,182.23, 18,226.47 and 11,521.47

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Solution

The fourth proportional to 13,182.23, 18,226.47 and 11,521.47 is: 15,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.23 : 18,226.47 = 11,521.47 : x
  2. Step 2: Convert to fraction form
    13,182.23/18,226.47 = 11,521.47/x
  3. Step 3: Cross multiply
    13,182.23x = 18,226.47 × 11,521.47
  4. Step 4: Simplify right side
    13,182.23x = 209,995,727.31
  5. Step 5: Solve for x
    x = 209,995,727.31/13,182.23
  6. Step 6: Final answer
    x = 15,930.22

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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.