Home / 15,228.93-21,015.06-8,513.22

Finding the Fourth Proportional to 15,228.93, 21,015.06 and 8,513.22

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Solution

The fourth proportional to 15,228.93, 21,015.06 and 8,513.22 is: 11,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.93 : 21,015.06 = 8,513.22 : x
  2. Step 2: Convert to fraction form
    15,228.93/21,015.06 = 8,513.22/x
  3. Step 3: Cross multiply
    15,228.93x = 21,015.06 × 8,513.22
  4. Step 4: Simplify right side
    15,228.93x = 178,905,829.09
  5. Step 5: Solve for x
    x = 178,905,829.09/15,228.93
  6. Step 6: Final answer
    x = 11,747.76

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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.