Home / 18,719.49-25,826.68-12,349.25

Finding the Fourth Proportional to 18,719.49, 25,826.68 and 12,349.25

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Solution

The fourth proportional to 18,719.49, 25,826.68 and 12,349.25 is: 17,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.49 : 25,826.68 = 12,349.25 : x
  2. Step 2: Convert to fraction form
    18,719.49/25,826.68 = 12,349.25/x
  3. Step 3: Cross multiply
    18,719.49x = 25,826.68 × 12,349.25
  4. Step 4: Simplify right side
    18,719.49x = 318,939,967.98
  5. Step 5: Solve for x
    x = 318,939,967.98/18,719.49
  6. Step 6: Final answer
    x = 17,037.86

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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.