Home / 8,809.28-12,157.22-5,271.84

Finding the Fourth Proportional to 8,809.28, 12,157.22 and 5,271.84

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Solution

The fourth proportional to 8,809.28, 12,157.22 and 5,271.84 is: 7,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.28 : 12,157.22 = 5,271.84 : x
  2. Step 2: Convert to fraction form
    8,809.28/12,157.22 = 5,271.84/x
  3. Step 3: Cross multiply
    8,809.28x = 12,157.22 × 5,271.84
  4. Step 4: Simplify right side
    8,809.28x = 64,090,918.68
  5. Step 5: Solve for x
    x = 64,090,918.68/8,809.28
  6. Step 6: Final answer
    x = 7,275.39

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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.