Home / 13,362.24-18,438.40-7,394.04

Finding the Fourth Proportional to 13,362.24, 18,438.40 and 7,394.04

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Solution

The fourth proportional to 13,362.24, 18,438.40 and 7,394.04 is: 10,202.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.24 : 18,438.40 = 7,394.04 : x
  2. Step 2: Convert to fraction form
    13,362.24/18,438.40 = 7,394.04/x
  3. Step 3: Cross multiply
    13,362.24x = 18,438.40 × 7,394.04
  4. Step 4: Simplify right side
    13,362.24x = 136,334,267.14
  5. Step 5: Solve for x
    x = 136,334,267.14/13,362.24
  6. Step 6: Final answer
    x = 10,202.95

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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.