Home / 11,471.22-15,823.57-7,215.57

Finding the Fourth Proportional to 11,471.22, 15,823.57 and 7,215.57

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Solution

The fourth proportional to 11,471.22, 15,823.57 and 7,215.57 is: 9,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.22 : 15,823.57 = 7,215.57 : x
  2. Step 2: Convert to fraction form
    11,471.22/15,823.57 = 7,215.57/x
  3. Step 3: Cross multiply
    11,471.22x = 15,823.57 × 7,215.57
  4. Step 4: Simplify right side
    11,471.22x = 114,176,076.98
  5. Step 5: Solve for x
    x = 114,176,076.98/11,471.22
  6. Step 6: Final answer
    x = 9,953.26

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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.