Home / 8,934.21-12,323.34-5,742.48

Finding the Fourth Proportional to 8,934.21, 12,323.34 and 5,742.48

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Solution

The fourth proportional to 8,934.21, 12,323.34 and 5,742.48 is: 7,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.21 : 12,323.34 = 5,742.48 : x
  2. Step 2: Convert to fraction form
    8,934.21/12,323.34 = 5,742.48/x
  3. Step 3: Cross multiply
    8,934.21x = 12,323.34 × 5,742.48
  4. Step 4: Simplify right side
    8,934.21x = 70,766,533.48
  5. Step 5: Solve for x
    x = 70,766,533.48/8,934.21
  6. Step 6: Final answer
    x = 7,920.85

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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.