Home / 8,806.20-12,153.05-5,223.28

Finding the Fourth Proportional to 8,806.20, 12,153.05 and 5,223.28

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Solution

The fourth proportional to 8,806.20, 12,153.05 and 5,223.28 is: 7,208.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.20 : 12,153.05 = 5,223.28 : x
  2. Step 2: Convert to fraction form
    8,806.20/12,153.05 = 5,223.28/x
  3. Step 3: Cross multiply
    8,806.20x = 12,153.05 × 5,223.28
  4. Step 4: Simplify right side
    8,806.20x = 63,478,798.26
  5. Step 5: Solve for x
    x = 63,478,798.26/8,806.20
  6. Step 6: Final answer
    x = 7,208.42

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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.