Home / 17,687.10-26,521.51-5,205.50

Finding the Fourth Proportional to 17,687.10, 26,521.51 and 5,205.50

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Solution

The fourth proportional to 17,687.10, 26,521.51 and 5,205.50 is: 7,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.10 : 26,521.51 = 5,205.50 : x
  2. Step 2: Convert to fraction form
    17,687.10/26,521.51 = 5,205.50/x
  3. Step 3: Cross multiply
    17,687.10x = 26,521.51 × 5,205.50
  4. Step 4: Simplify right side
    17,687.10x = 138,057,660.51
  5. Step 5: Solve for x
    x = 138,057,660.51/17,687.10
  6. Step 6: Final answer
    x = 7,805.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.