Home / 15,253.77-21,049.23-8,538.27

Finding the Fourth Proportional to 15,253.77, 21,049.23 and 8,538.27

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Solution

The fourth proportional to 15,253.77, 21,049.23 and 8,538.27 is: 11,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.77 : 21,049.23 = 8,538.27 : x
  2. Step 2: Convert to fraction form
    15,253.77/21,049.23 = 8,538.27/x
  3. Step 3: Cross multiply
    15,253.77x = 21,049.23 × 8,538.27
  4. Step 4: Simplify right side
    15,253.77x = 179,724,009.03
  5. Step 5: Solve for x
    x = 179,724,009.03/15,253.77
  6. Step 6: Final answer
    x = 11,782.27

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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.