Home / 17,403.10-26,088.45-12,138.10

Finding the Fourth Proportional to 17,403.10, 26,088.45 and 12,138.10

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Solution

The fourth proportional to 17,403.10, 26,088.45 and 12,138.10 is: 18,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,403.10 : 26,088.45 = 12,138.10 : x
  2. Step 2: Convert to fraction form
    17,403.10/26,088.45 = 12,138.10/x
  3. Step 3: Cross multiply
    17,403.10x = 26,088.45 × 12,138.10
  4. Step 4: Simplify right side
    17,403.10x = 316,664,214.95
  5. Step 5: Solve for x
    x = 316,664,214.95/17,403.10
  6. Step 6: Final answer
    x = 18,195.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.