Home / 18,921.06-28,359.72-11,026.26

Finding the Fourth Proportional to 18,921.06, 28,359.72 and 11,026.26

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Solution

The fourth proportional to 18,921.06, 28,359.72 and 11,026.26 is: 16,526.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.06 : 28,359.72 = 11,026.26 : x
  2. Step 2: Convert to fraction form
    18,921.06/28,359.72 = 11,026.26/x
  3. Step 3: Cross multiply
    18,921.06x = 28,359.72 × 11,026.26
  4. Step 4: Simplify right side
    18,921.06x = 312,701,646.25
  5. Step 5: Solve for x
    x = 312,701,646.25/18,921.06
  6. Step 6: Final answer
    x = 16,526.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.