Home / 18,926.75-26,077.59-12,628.19

Finding the Fourth Proportional to 18,926.75, 26,077.59 and 12,628.19

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Solution

The fourth proportional to 18,926.75, 26,077.59 and 12,628.19 is: 17,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.75 : 26,077.59 = 12,628.19 : x
  2. Step 2: Convert to fraction form
    18,926.75/26,077.59 = 12,628.19/x
  3. Step 3: Cross multiply
    18,926.75x = 26,077.59 × 12,628.19
  4. Step 4: Simplify right side
    18,926.75x = 329,312,630.87
  5. Step 5: Solve for x
    x = 329,312,630.87/18,926.75
  6. Step 6: Final answer
    x = 17,399.33

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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.