Home / 15,346.53-21,178.35-8,632.44

Finding the Fourth Proportional to 15,346.53, 21,178.35 and 8,632.44

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Solution

The fourth proportional to 15,346.53, 21,178.35 and 8,632.44 is: 11,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.53 : 21,178.35 = 8,632.44 : x
  2. Step 2: Convert to fraction form
    15,346.53/21,178.35 = 8,632.44/x
  3. Step 3: Cross multiply
    15,346.53x = 21,178.35 × 8,632.44
  4. Step 4: Simplify right side
    15,346.53x = 182,820,835.67
  5. Step 5: Solve for x
    x = 182,820,835.67/15,346.53
  6. Step 6: Final answer
    x = 11,912.85

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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.