Home / 8,808.87-12,156.28-5,272.08

Finding the Fourth Proportional to 8,808.87, 12,156.28 and 5,272.08

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Solution

The fourth proportional to 8,808.87, 12,156.28 and 5,272.08 is: 7,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.87 : 12,156.28 = 5,272.08 : x
  2. Step 2: Convert to fraction form
    8,808.87/12,156.28 = 5,272.08/x
  3. Step 3: Cross multiply
    8,808.87x = 12,156.28 × 5,272.08
  4. Step 4: Simplify right side
    8,808.87x = 64,088,867.48
  5. Step 5: Solve for x
    x = 64,088,867.48/8,808.87
  6. Step 6: Final answer
    x = 7,275.49

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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.