Home / 19,676.47-27,148.71-12,612.46

Finding the Fourth Proportional to 19,676.47, 27,148.71 and 12,612.46

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Solution

The fourth proportional to 19,676.47, 27,148.71 and 12,612.46 is: 17,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,676.47 : 27,148.71 = 12,612.46 : x
  2. Step 2: Convert to fraction form
    19,676.47/27,148.71 = 12,612.46/x
  3. Step 3: Cross multiply
    19,676.47x = 27,148.71 × 12,612.46
  4. Step 4: Simplify right side
    19,676.47x = 342,412,018.93
  5. Step 5: Solve for x
    x = 342,412,018.93/19,676.47
  6. Step 6: Final answer
    x = 17,402.11

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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.