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Finding the Fourth Proportional to 18,946.58, 26,118.92 and 13,263.68

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Solution

The fourth proportional to 18,946.58, 26,118.92 and 13,263.68 is: 18,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.58 : 26,118.92 = 13,263.68 : x
  2. Step 2: Convert to fraction form
    18,946.58/26,118.92 = 13,263.68/x
  3. Step 3: Cross multiply
    18,946.58x = 26,118.92 × 13,263.68
  4. Step 4: Simplify right side
    18,946.58x = 346,433,095.28
  5. Step 5: Solve for x
    x = 346,433,095.28/18,946.58
  6. Step 6: Final answer
    x = 18,284.73

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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.