Home / 13,720.38-20,568.34-4,953.34

Finding the Fourth Proportional to 13,720.38, 20,568.34 and 4,953.34

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Solution

The fourth proportional to 13,720.38, 20,568.34 and 4,953.34 is: 7,425.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.38 : 20,568.34 = 4,953.34 : x
  2. Step 2: Convert to fraction form
    13,720.38/20,568.34 = 4,953.34/x
  3. Step 3: Cross multiply
    13,720.38x = 20,568.34 × 4,953.34
  4. Step 4: Simplify right side
    13,720.38x = 101,881,981.26
  5. Step 5: Solve for x
    x = 101,881,981.26/13,720.38
  6. Step 6: Final answer
    x = 7,425.59

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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.