Home / 13,642.04-18,825.20-7,592.12

Finding the Fourth Proportional to 13,642.04, 18,825.20 and 7,592.12

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Solution

The fourth proportional to 13,642.04, 18,825.20 and 7,592.12 is: 10,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.04 : 18,825.20 = 7,592.12 : x
  2. Step 2: Convert to fraction form
    13,642.04/18,825.20 = 7,592.12/x
  3. Step 3: Cross multiply
    13,642.04x = 18,825.20 × 7,592.12
  4. Step 4: Simplify right side
    13,642.04x = 142,923,177.42
  5. Step 5: Solve for x
    x = 142,923,177.42/13,642.04
  6. Step 6: Final answer
    x = 10,476.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.