Home / 12,220.51-18,332.13-3,456.11

Finding the Fourth Proportional to 12,220.51, 18,332.13 and 3,456.11

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Solution

The fourth proportional to 12,220.51, 18,332.13 and 3,456.11 is: 5,184.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.51 : 18,332.13 = 3,456.11 : x
  2. Step 2: Convert to fraction form
    12,220.51/18,332.13 = 3,456.11/x
  3. Step 3: Cross multiply
    12,220.51x = 18,332.13 × 3,456.11
  4. Step 4: Simplify right side
    12,220.51x = 63,357,748.87
  5. Step 5: Solve for x
    x = 63,357,748.87/12,220.51
  6. Step 6: Final answer
    x = 5,184.54

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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.