Home / 19,021.05-26,255.15-13,357.17

Finding the Fourth Proportional to 19,021.05, 26,255.15 and 13,357.17

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Solution

The fourth proportional to 19,021.05, 26,255.15 and 13,357.17 is: 18,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.05 : 26,255.15 = 13,357.17 : x
  2. Step 2: Convert to fraction form
    19,021.05/26,255.15 = 13,357.17/x
  3. Step 3: Cross multiply
    19,021.05x = 26,255.15 × 13,357.17
  4. Step 4: Simplify right side
    19,021.05x = 350,694,485.23
  5. Step 5: Solve for x
    x = 350,694,485.23/19,021.05
  6. Step 6: Final answer
    x = 18,437.18

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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.