Home / 13,440.33-20,138.22-4,670.46

Finding the Fourth Proportional to 13,440.33, 20,138.22 and 4,670.46

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Solution

The fourth proportional to 13,440.33, 20,138.22 and 4,670.46 is: 6,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.33 : 20,138.22 = 4,670.46 : x
  2. Step 2: Convert to fraction form
    13,440.33/20,138.22 = 4,670.46/x
  3. Step 3: Cross multiply
    13,440.33x = 20,138.22 × 4,670.46
  4. Step 4: Simplify right side
    13,440.33x = 94,054,750.98
  5. Step 5: Solve for x
    x = 94,054,750.98/13,440.33
  6. Step 6: Final answer
    x = 6,997.95

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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.