Home / 19,135.20-26,407-10,638.16

Finding the Fourth Proportional to 19,135.20, 26,407 and 10,638.16

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Solution

The fourth proportional to 19,135.20, 26,407 and 10,638.16 is: 14,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.20 : 26,407 = 10,638.16 : x
  2. Step 2: Convert to fraction form
    19,135.20/26,407 = 10,638.16/x
  3. Step 3: Cross multiply
    19,135.20x = 26,407 × 10,638.16
  4. Step 4: Simplify right side
    19,135.20x = 280,921,891.12
  5. Step 5: Solve for x
    x = 280,921,891.12/19,135.20
  6. Step 6: Final answer
    x = 14,680.90

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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.