Home / 19,135.62-26,405.08-10,638.10

Finding the Fourth Proportional to 19,135.62, 26,405.08 and 10,638.10

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Solution

The fourth proportional to 19,135.62, 26,405.08 and 10,638.10 is: 14,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.62 : 26,405.08 = 10,638.10 : x
  2. Step 2: Convert to fraction form
    19,135.62/26,405.08 = 10,638.10/x
  3. Step 3: Cross multiply
    19,135.62x = 26,405.08 × 10,638.10
  4. Step 4: Simplify right side
    19,135.62x = 280,899,997.31
  5. Step 5: Solve for x
    x = 280,899,997.31/19,135.62
  6. Step 6: Final answer
    x = 14,679.43

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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.