Home / 15,824.23-21,839.70-9,857.77

Finding the Fourth Proportional to 15,824.23, 21,839.70 and 9,857.77

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Solution

The fourth proportional to 15,824.23, 21,839.70 and 9,857.77 is: 13,605.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.23 : 21,839.70 = 9,857.77 : x
  2. Step 2: Convert to fraction form
    15,824.23/21,839.70 = 9,857.77/x
  3. Step 3: Cross multiply
    15,824.23x = 21,839.70 × 9,857.77
  4. Step 4: Simplify right side
    15,824.23x = 215,290,739.47
  5. Step 5: Solve for x
    x = 215,290,739.47/15,824.23
  6. Step 6: Final answer
    x = 13,605.13

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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.