Home / 19,557.11-26,992.37-12,830.87

Finding the Fourth Proportional to 19,557.11, 26,992.37 and 12,830.87

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Solution

The fourth proportional to 19,557.11, 26,992.37 and 12,830.87 is: 17,708.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.11 : 26,992.37 = 12,830.87 : x
  2. Step 2: Convert to fraction form
    19,557.11/26,992.37 = 12,830.87/x
  3. Step 3: Cross multiply
    19,557.11x = 26,992.37 × 12,830.87
  4. Step 4: Simplify right side
    19,557.11x = 346,335,590.46
  5. Step 5: Solve for x
    x = 346,335,590.46/19,557.11
  6. Step 6: Final answer
    x = 17,708.94

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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.