Home / 12,424.84-18,637.40-3,659.92

Finding the Fourth Proportional to 12,424.84, 18,637.40 and 3,659.92

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Solution

The fourth proportional to 12,424.84, 18,637.40 and 3,659.92 is: 5,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.84 : 18,637.40 = 3,659.92 : x
  2. Step 2: Convert to fraction form
    12,424.84/18,637.40 = 3,659.92/x
  3. Step 3: Cross multiply
    12,424.84x = 18,637.40 × 3,659.92
  4. Step 4: Simplify right side
    12,424.84x = 68,211,393.01
  5. Step 5: Solve for x
    x = 68,211,393.01/12,424.84
  6. Step 6: Final answer
    x = 5,489.92

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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.