Home / 17,358.87-26,011.05-13,419.78

Finding the Fourth Proportional to 17,358.87, 26,011.05 and 13,419.78

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Solution

The fourth proportional to 17,358.87, 26,011.05 and 13,419.78 is: 20,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,358.87 : 26,011.05 = 13,419.78 : x
  2. Step 2: Convert to fraction form
    17,358.87/26,011.05 = 13,419.78/x
  3. Step 3: Cross multiply
    17,358.87x = 26,011.05 × 13,419.78
  4. Step 4: Simplify right side
    17,358.87x = 349,062,568.57
  5. Step 5: Solve for x
    x = 349,062,568.57/17,358.87
  6. Step 6: Final answer
    x = 20,108.60

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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.