Home / 13,212.34-19,820.56-4,446.57

Finding the Fourth Proportional to 13,212.34, 19,820.56 and 4,446.57

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Solution

The fourth proportional to 13,212.34, 19,820.56 and 4,446.57 is: 6,670.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.34 : 19,820.56 = 4,446.57 : x
  2. Step 2: Convert to fraction form
    13,212.34/19,820.56 = 4,446.57/x
  3. Step 3: Cross multiply
    13,212.34x = 19,820.56 × 4,446.57
  4. Step 4: Simplify right side
    13,212.34x = 88,133,507.48
  5. Step 5: Solve for x
    x = 88,133,507.48/13,212.34
  6. Step 6: Final answer
    x = 6,670.54

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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.