Home / 19,352.82-26,712.57-12,639.47

Finding the Fourth Proportional to 19,352.82, 26,712.57 and 12,639.47

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Solution

The fourth proportional to 19,352.82, 26,712.57 and 12,639.47 is: 17,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,352.82 : 26,712.57 = 12,639.47 : x
  2. Step 2: Convert to fraction form
    19,352.82/26,712.57 = 12,639.47/x
  3. Step 3: Cross multiply
    19,352.82x = 26,712.57 × 12,639.47
  4. Step 4: Simplify right side
    19,352.82x = 337,632,593.58
  5. Step 5: Solve for x
    x = 337,632,593.58/19,352.82
  6. Step 6: Final answer
    x = 17,446.17

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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.