Home / 15,349.84-21,180.90-9,682.46

Finding the Fourth Proportional to 15,349.84, 21,180.90 and 9,682.46

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Solution

The fourth proportional to 15,349.84, 21,180.90 and 9,682.46 is: 13,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.84 : 21,180.90 = 9,682.46 : x
  2. Step 2: Convert to fraction form
    15,349.84/21,180.90 = 9,682.46/x
  3. Step 3: Cross multiply
    15,349.84x = 21,180.90 × 9,682.46
  4. Step 4: Simplify right side
    15,349.84x = 205,083,217.01
  5. Step 5: Solve for x
    x = 205,083,217.01/15,349.84
  6. Step 6: Final answer
    x = 13,360.61

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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.