Home / 18,905.08-26,087.50-10,947.82

Finding the Fourth Proportional to 18,905.08, 26,087.50 and 10,947.82

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Solution

The fourth proportional to 18,905.08, 26,087.50 and 10,947.82 is: 15,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.08 : 26,087.50 = 10,947.82 : x
  2. Step 2: Convert to fraction form
    18,905.08/26,087.50 = 10,947.82/x
  3. Step 3: Cross multiply
    18,905.08x = 26,087.50 × 10,947.82
  4. Step 4: Simplify right side
    18,905.08x = 285,601,254.25
  5. Step 5: Solve for x
    x = 285,601,254.25/18,905.08
  6. Step 6: Final answer
    x = 15,107.12

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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.