Home / 12,429.92-18,642.44-4,637.18

Finding the Fourth Proportional to 12,429.92, 18,642.44 and 4,637.18

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Solution

The fourth proportional to 12,429.92, 18,642.44 and 4,637.18 is: 6,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.92 : 18,642.44 = 4,637.18 : x
  2. Step 2: Convert to fraction form
    12,429.92/18,642.44 = 4,637.18/x
  3. Step 3: Cross multiply
    12,429.92x = 18,642.44 × 4,637.18
  4. Step 4: Simplify right side
    12,429.92x = 86,448,233.52
  5. Step 5: Solve for x
    x = 86,448,233.52/12,429.92
  6. Step 6: Final answer
    x = 6,954.85

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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.