Home / 18,921.67-26,109.93-11,652.60

Finding the Fourth Proportional to 18,921.67, 26,109.93 and 11,652.60

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Solution

The fourth proportional to 18,921.67, 26,109.93 and 11,652.60 is: 16,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.67 : 26,109.93 = 11,652.60 : x
  2. Step 2: Convert to fraction form
    18,921.67/26,109.93 = 11,652.60/x
  3. Step 3: Cross multiply
    18,921.67x = 26,109.93 × 11,652.60
  4. Step 4: Simplify right side
    18,921.67x = 304,248,570.32
  5. Step 5: Solve for x
    x = 304,248,570.32/18,921.67
  6. Step 6: Final answer
    x = 16,079.38

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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.