Home / 13,212.46-19,820.74-4,446.69

Finding the Fourth Proportional to 13,212.46, 19,820.74 and 4,446.69

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Solution

The fourth proportional to 13,212.46, 19,820.74 and 4,446.69 is: 6,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.46 : 19,820.74 = 4,446.69 : x
  2. Step 2: Convert to fraction form
    13,212.46/19,820.74 = 4,446.69/x
  3. Step 3: Cross multiply
    13,212.46x = 19,820.74 × 4,446.69
  4. Step 4: Simplify right side
    13,212.46x = 88,136,686.35
  5. Step 5: Solve for x
    x = 88,136,686.35/13,212.46
  6. Step 6: Final answer
    x = 6,670.72

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Double scale
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Similar ratio
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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.