Home / 15,799.77-21,801.33-9,085.68

Finding the Fourth Proportional to 15,799.77, 21,801.33 and 9,085.68

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Solution

The fourth proportional to 15,799.77, 21,801.33 and 9,085.68 is: 12,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.77 : 21,801.33 = 9,085.68 : x
  2. Step 2: Convert to fraction form
    15,799.77/21,801.33 = 9,085.68/x
  3. Step 3: Cross multiply
    15,799.77x = 21,801.33 × 9,085.68
  4. Step 4: Simplify right side
    15,799.77x = 198,079,907.95
  5. Step 5: Solve for x
    x = 198,079,907.95/15,799.77
  6. Step 6: Final answer
    x = 12,536.89

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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.