Home / 19,278.78-26,609.15-12,552.70

Finding the Fourth Proportional to 19,278.78, 26,609.15 and 12,552.70

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Solution

The fourth proportional to 19,278.78, 26,609.15 and 12,552.70 is: 17,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.78 : 26,609.15 = 12,552.70 : x
  2. Step 2: Convert to fraction form
    19,278.78/26,609.15 = 12,552.70/x
  3. Step 3: Cross multiply
    19,278.78x = 26,609.15 × 12,552.70
  4. Step 4: Simplify right side
    19,278.78x = 334,016,677.21
  5. Step 5: Solve for x
    x = 334,016,677.21/19,278.78
  6. Step 6: Final answer
    x = 17,325.61

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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.