Home / 15,736.15-21,716.90-8,663.01

Finding the Fourth Proportional to 15,736.15, 21,716.90 and 8,663.01

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Solution

The fourth proportional to 15,736.15, 21,716.90 and 8,663.01 is: 11,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.15 : 21,716.90 = 8,663.01 : x
  2. Step 2: Convert to fraction form
    15,736.15/21,716.90 = 8,663.01/x
  3. Step 3: Cross multiply
    15,736.15x = 21,716.90 × 8,663.01
  4. Step 4: Simplify right side
    15,736.15x = 188,133,721.87
  5. Step 5: Solve for x
    x = 188,133,721.87/15,736.15
  6. Step 6: Final answer
    x = 11,955.51

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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.