Home / 8,764.13-13,138.40-3,216.21

Finding the Fourth Proportional to 8,764.13, 13,138.40 and 3,216.21

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Solution

The fourth proportional to 8,764.13, 13,138.40 and 3,216.21 is: 4,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.13 : 13,138.40 = 3,216.21 : x
  2. Step 2: Convert to fraction form
    8,764.13/13,138.40 = 3,216.21/x
  3. Step 3: Cross multiply
    8,764.13x = 13,138.40 × 3,216.21
  4. Step 4: Simplify right side
    8,764.13x = 42,255,812.24
  5. Step 5: Solve for x
    x = 42,255,812.24/8,764.13
  6. Step 6: Final answer
    x = 4,821.45

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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.