Home / 14,398.89-19,863.68-8,426.87

Finding the Fourth Proportional to 14,398.89, 19,863.68 and 8,426.87

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Solution

The fourth proportional to 14,398.89, 19,863.68 and 8,426.87 is: 11,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.89 : 19,863.68 = 8,426.87 : x
  2. Step 2: Convert to fraction form
    14,398.89/19,863.68 = 8,426.87/x
  3. Step 3: Cross multiply
    14,398.89x = 19,863.68 × 8,426.87
  4. Step 4: Simplify right side
    14,398.89x = 167,388,507.63
  5. Step 5: Solve for x
    x = 167,388,507.63/14,398.89
  6. Step 6: Final answer
    x = 11,625.10

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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.