Home / 8,297.12-12,416.43-5,178.59

Finding the Fourth Proportional to 8,297.12, 12,416.43 and 5,178.59

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Solution

The fourth proportional to 8,297.12, 12,416.43 and 5,178.59 is: 7,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,297.12 : 12,416.43 = 5,178.59 : x
  2. Step 2: Convert to fraction form
    8,297.12/12,416.43 = 5,178.59/x
  3. Step 3: Cross multiply
    8,297.12x = 12,416.43 × 5,178.59
  4. Step 4: Simplify right side
    8,297.12x = 64,299,538.15
  5. Step 5: Solve for x
    x = 64,299,538.15/8,297.12
  6. Step 6: Final answer
    x = 7,749.63

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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.