Home / 15,696.24-21,660.70-8,526.09

Finding the Fourth Proportional to 15,696.24, 21,660.70 and 8,526.09

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Solution

The fourth proportional to 15,696.24, 21,660.70 and 8,526.09 is: 11,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.24 : 21,660.70 = 8,526.09 : x
  2. Step 2: Convert to fraction form
    15,696.24/21,660.70 = 8,526.09/x
  3. Step 3: Cross multiply
    15,696.24x = 21,660.70 × 8,526.09
  4. Step 4: Simplify right side
    15,696.24x = 184,681,077.66
  5. Step 5: Solve for x
    x = 184,681,077.66/15,696.24
  6. Step 6: Final answer
    x = 11,765.94

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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.