Home / 15,696.10-21,660.79-8,526.09

Finding the Fourth Proportional to 15,696.10, 21,660.79 and 8,526.09

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Solution

The fourth proportional to 15,696.10, 21,660.79 and 8,526.09 is: 11,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.10 : 21,660.79 = 8,526.09 : x
  2. Step 2: Convert to fraction form
    15,696.10/21,660.79 = 8,526.09/x
  3. Step 3: Cross multiply
    15,696.10x = 21,660.79 × 8,526.09
  4. Step 4: Simplify right side
    15,696.10x = 184,681,845.24
  5. Step 5: Solve for x
    x = 184,681,845.24/15,696.10
  6. Step 6: Final answer
    x = 11,766.09

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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.