Home / 17,685.80-26,528.32-5,205.52

Finding the Fourth Proportional to 17,685.80, 26,528.32 and 5,205.52

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Solution

The fourth proportional to 17,685.80, 26,528.32 and 5,205.52 is: 7,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,685.80 : 26,528.32 = 5,205.52 : x
  2. Step 2: Convert to fraction form
    17,685.80/26,528.32 = 5,205.52/x
  3. Step 3: Cross multiply
    17,685.80x = 26,528.32 × 5,205.52
  4. Step 4: Simplify right side
    17,685.80x = 138,093,700.33
  5. Step 5: Solve for x
    x = 138,093,700.33/17,685.80
  6. Step 6: Final answer
    x = 7,808.17

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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.