Home / 11,223.70-15,489.63-6,188.40

Finding the Fourth Proportional to 11,223.70, 15,489.63 and 6,188.40

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Solution

The fourth proportional to 11,223.70, 15,489.63 and 6,188.40 is: 8,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.70 : 15,489.63 = 6,188.40 : x
  2. Step 2: Convert to fraction form
    11,223.70/15,489.63 = 6,188.40/x
  3. Step 3: Cross multiply
    11,223.70x = 15,489.63 × 6,188.40
  4. Step 4: Simplify right side
    11,223.70x = 95,856,026.29
  5. Step 5: Solve for x
    x = 95,856,026.29/11,223.70
  6. Step 6: Final answer
    x = 8,540.50

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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.