Home / 18,932.39-26,126.80-10,865.40

Finding the Fourth Proportional to 18,932.39, 26,126.80 and 10,865.40

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Solution

The fourth proportional to 18,932.39, 26,126.80 and 10,865.40 is: 14,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.39 : 26,126.80 = 10,865.40 : x
  2. Step 2: Convert to fraction form
    18,932.39/26,126.80 = 10,865.40/x
  3. Step 3: Cross multiply
    18,932.39x = 26,126.80 × 10,865.40
  4. Step 4: Simplify right side
    18,932.39x = 283,878,225.20
  5. Step 5: Solve for x
    x = 283,878,225.20/18,932.39
  6. Step 6: Final answer
    x = 14,994.31

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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.