Home / 13,380.14-18,464.36-7,411.79

Finding the Fourth Proportional to 13,380.14, 18,464.36 and 7,411.79

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Solution

The fourth proportional to 13,380.14, 18,464.36 and 7,411.79 is: 10,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.14 : 18,464.36 = 7,411.79 : x
  2. Step 2: Convert to fraction form
    13,380.14/18,464.36 = 7,411.79/x
  3. Step 3: Cross multiply
    13,380.14x = 18,464.36 × 7,411.79
  4. Step 4: Simplify right side
    13,380.14x = 136,853,967.91
  5. Step 5: Solve for x
    x = 136,853,967.91/13,380.14
  6. Step 6: Final answer
    x = 10,228.14

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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.