Home / 13,721.42-20,580.54-5,825.12

Finding the Fourth Proportional to 13,721.42, 20,580.54 and 5,825.12

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Solution

The fourth proportional to 13,721.42, 20,580.54 and 5,825.12 is: 8,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.42 : 20,580.54 = 5,825.12 : x
  2. Step 2: Convert to fraction form
    13,721.42/20,580.54 = 5,825.12/x
  3. Step 3: Cross multiply
    13,721.42x = 20,580.54 × 5,825.12
  4. Step 4: Simplify right side
    13,721.42x = 119,884,115.16
  5. Step 5: Solve for x
    x = 119,884,115.16/13,721.42
  6. Step 6: Final answer
    x = 8,737.01

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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.