Home / 8,910.32-12,295.40-5,324.57

Finding the Fourth Proportional to 8,910.32, 12,295.40 and 5,324.57

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Solution

The fourth proportional to 8,910.32, 12,295.40 and 5,324.57 is: 7,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.32 : 12,295.40 = 5,324.57 : x
  2. Step 2: Convert to fraction form
    8,910.32/12,295.40 = 5,324.57/x
  3. Step 3: Cross multiply
    8,910.32x = 12,295.40 × 5,324.57
  4. Step 4: Simplify right side
    8,910.32x = 65,467,717.98
  5. Step 5: Solve for x
    x = 65,467,717.98/8,910.32
  6. Step 6: Final answer
    x = 7,347.40

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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.