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Finding the Fourth Proportional to 18,810.70, 26,393.30 and 18,810.70

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Solution

The fourth proportional to 18,810.70, 26,393.30 and 18,810.70 is: 26,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.70 : 26,393.30 = 18,810.70 : x
  2. Step 2: Convert to fraction form
    18,810.70/26,393.30 = 18,810.70/x
  3. Step 3: Cross multiply
    18,810.70x = 26,393.30 × 18,810.70
  4. Step 4: Simplify right side
    18,810.70x = 496,476,448.31
  5. Step 5: Solve for x
    x = 496,476,448.31/18,810.70
  6. Step 6: Final answer
    x = 26,393.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.