Home / 17,931.49-26,901.78-12,676.84

Finding the Fourth Proportional to 17,931.49, 26,901.78 and 12,676.84

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Solution

The fourth proportional to 17,931.49, 26,901.78 and 12,676.84 is: 19,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931.49 : 26,901.78 = 12,676.84 : x
  2. Step 2: Convert to fraction form
    17,931.49/26,901.78 = 12,676.84/x
  3. Step 3: Cross multiply
    17,931.49x = 26,901.78 × 12,676.84
  4. Step 4: Simplify right side
    17,931.49x = 341,029,560.78
  5. Step 5: Solve for x
    x = 341,029,560.78/17,931.49
  6. Step 6: Final answer
    x = 19,018.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.