Home / 12,301.04-18,458.04-5,380.40

Finding the Fourth Proportional to 12,301.04, 18,458.04 and 5,380.40

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Solution

The fourth proportional to 12,301.04, 18,458.04 and 5,380.40 is: 8,073.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.04 : 18,458.04 = 5,380.40 : x
  2. Step 2: Convert to fraction form
    12,301.04/18,458.04 = 5,380.40/x
  3. Step 3: Cross multiply
    12,301.04x = 18,458.04 × 5,380.40
  4. Step 4: Simplify right side
    12,301.04x = 99,311,638.42
  5. Step 5: Solve for x
    x = 99,311,638.42/12,301.04
  6. Step 6: Final answer
    x = 8,073.43

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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.