Home / 13,738.40-20,607.54-5,742.18

Finding the Fourth Proportional to 13,738.40, 20,607.54 and 5,742.18

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Solution

The fourth proportional to 13,738.40, 20,607.54 and 5,742.18 is: 8,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.40 : 20,607.54 = 5,742.18 : x
  2. Step 2: Convert to fraction form
    13,738.40/20,607.54 = 5,742.18/x
  3. Step 3: Cross multiply
    13,738.40x = 20,607.54 × 5,742.18
  4. Step 4: Simplify right side
    13,738.40x = 118,332,204.04
  5. Step 5: Solve for x
    x = 118,332,204.04/13,738.40
  6. Step 6: Final answer
    x = 8,613.25

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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.