Home / 9,408.24-12,984.48-5,216.76

Finding the Fourth Proportional to 9,408.24, 12,984.48 and 5,216.76

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Solution

The fourth proportional to 9,408.24, 12,984.48 and 5,216.76 is: 7,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.24 : 12,984.48 = 5,216.76 : x
  2. Step 2: Convert to fraction form
    9,408.24/12,984.48 = 5,216.76/x
  3. Step 3: Cross multiply
    9,408.24x = 12,984.48 × 5,216.76
  4. Step 4: Simplify right side
    9,408.24x = 67,736,915.88
  5. Step 5: Solve for x
    x = 67,736,915.88/9,408.24
  6. Step 6: Final answer
    x = 7,199.74

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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.