Home / 19,143.94-26,418.39-10,645.99

Finding the Fourth Proportional to 19,143.94, 26,418.39 and 10,645.99

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Solution

The fourth proportional to 19,143.94, 26,418.39 and 10,645.99 is: 14,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.94 : 26,418.39 = 10,645.99 : x
  2. Step 2: Convert to fraction form
    19,143.94/26,418.39 = 10,645.99/x
  3. Step 3: Cross multiply
    19,143.94x = 26,418.39 × 10,645.99
  4. Step 4: Simplify right side
    19,143.94x = 281,249,915.76
  5. Step 5: Solve for x
    x = 281,249,915.76/19,143.94
  6. Step 6: Final answer
    x = 14,691.33

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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.