Home / 8,862.72-13,288.59-3,313.20

Finding the Fourth Proportional to 8,862.72, 13,288.59 and 3,313.20

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Solution

The fourth proportional to 8,862.72, 13,288.59 and 3,313.20 is: 4,967.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.72 : 13,288.59 = 3,313.20 : x
  2. Step 2: Convert to fraction form
    8,862.72/13,288.59 = 3,313.20/x
  3. Step 3: Cross multiply
    8,862.72x = 13,288.59 × 3,313.20
  4. Step 4: Simplify right side
    8,862.72x = 44,027,756.39
  5. Step 5: Solve for x
    x = 44,027,756.39/8,862.72
  6. Step 6: Final answer
    x = 4,967.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.