Home / 17,721.26-26,566.80-7,855.15

Finding the Fourth Proportional to 17,721.26, 26,566.80 and 7,855.15

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Solution

The fourth proportional to 17,721.26, 26,566.80 and 7,855.15 is: 11,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.26 : 26,566.80 = 7,855.15 : x
  2. Step 2: Convert to fraction form
    17,721.26/26,566.80 = 7,855.15/x
  3. Step 3: Cross multiply
    17,721.26x = 26,566.80 × 7,855.15
  4. Step 4: Simplify right side
    17,721.26x = 208,686,199.02
  5. Step 5: Solve for x
    x = 208,686,199.02/17,721.26
  6. Step 6: Final answer
    x = 11,776.04

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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.