Home / 18,942.60-26,113.50-13,259.82

Finding the Fourth Proportional to 18,942.60, 26,113.50 and 13,259.82

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Solution

The fourth proportional to 18,942.60, 26,113.50 and 13,259.82 is: 18,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.60 : 26,113.50 = 13,259.82 : x
  2. Step 2: Convert to fraction form
    18,942.60/26,113.50 = 13,259.82/x
  3. Step 3: Cross multiply
    18,942.60x = 26,113.50 × 13,259.82
  4. Step 4: Simplify right side
    18,942.60x = 346,260,309.57
  5. Step 5: Solve for x
    x = 346,260,309.57/18,942.60
  6. Step 6: Final answer
    x = 18,279.45

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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.