Home / 19,646.87-29,476.44-12,634.79

Finding the Fourth Proportional to 19,646.87, 29,476.44 and 12,634.79

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Solution

The fourth proportional to 19,646.87, 29,476.44 and 12,634.79 is: 18,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.87 : 29,476.44 = 12,634.79 : x
  2. Step 2: Convert to fraction form
    19,646.87/29,476.44 = 12,634.79/x
  3. Step 3: Cross multiply
    19,646.87x = 29,476.44 × 12,634.79
  4. Step 4: Simplify right side
    19,646.87x = 372,428,703.04
  5. Step 5: Solve for x
    x = 372,428,703.04/19,646.87
  6. Step 6: Final answer
    x = 18,956.14

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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.