Home / 15,249.81-21,044.73-8,535.72

Finding the Fourth Proportional to 15,249.81, 21,044.73 and 8,535.72

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Solution

The fourth proportional to 15,249.81, 21,044.73 and 8,535.72 is: 11,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.81 : 21,044.73 = 8,535.72 : x
  2. Step 2: Convert to fraction form
    15,249.81/21,044.73 = 8,535.72/x
  3. Step 3: Cross multiply
    15,249.81x = 21,044.73 × 8,535.72
  4. Step 4: Simplify right side
    15,249.81x = 179,631,922.76
  5. Step 5: Solve for x
    x = 179,631,922.76/15,249.81
  6. Step 6: Final answer
    x = 11,779.29

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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.