Home / 8,346.72-12,521.28-3,153.84

Finding the Fourth Proportional to 8,346.72, 12,521.28 and 3,153.84

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Solution

The fourth proportional to 8,346.72, 12,521.28 and 3,153.84 is: 4,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.72 : 12,521.28 = 3,153.84 : x
  2. Step 2: Convert to fraction form
    8,346.72/12,521.28 = 3,153.84/x
  3. Step 3: Cross multiply
    8,346.72x = 12,521.28 × 3,153.84
  4. Step 4: Simplify right side
    8,346.72x = 39,490,113.72
  5. Step 5: Solve for x
    x = 39,490,113.72/8,346.72
  6. Step 6: Final answer
    x = 4,731.21

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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.