Home / 13,899.42-20,836.58-5,132.18

Finding the Fourth Proportional to 13,899.42, 20,836.58 and 5,132.18

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Solution

The fourth proportional to 13,899.42, 20,836.58 and 5,132.18 is: 7,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.42 : 20,836.58 = 5,132.18 : x
  2. Step 2: Convert to fraction form
    13,899.42/20,836.58 = 5,132.18/x
  3. Step 3: Cross multiply
    13,899.42x = 20,836.58 × 5,132.18
  4. Step 4: Simplify right side
    13,899.42x = 106,937,105.57
  5. Step 5: Solve for x
    x = 106,937,105.57/13,899.42
  6. Step 6: Final answer
    x = 7,693.64

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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.