Home / 18,977.70-26,199.69-11,425.87

Finding the Fourth Proportional to 18,977.70, 26,199.69 and 11,425.87

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Solution

The fourth proportional to 18,977.70, 26,199.69 and 11,425.87 is: 15,774.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.70 : 26,199.69 = 11,425.87 : x
  2. Step 2: Convert to fraction form
    18,977.70/26,199.69 = 11,425.87/x
  3. Step 3: Cross multiply
    18,977.70x = 26,199.69 × 11,425.87
  4. Step 4: Simplify right side
    18,977.70x = 299,354,251.98
  5. Step 5: Solve for x
    x = 299,354,251.98/18,977.70
  6. Step 6: Final answer
    x = 15,774.00

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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.