Home / 13,366.91-18,446.09-7,398.59

Finding the Fourth Proportional to 13,366.91, 18,446.09 and 7,398.59

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Solution

The fourth proportional to 13,366.91, 18,446.09 and 7,398.59 is: 10,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.91 : 18,446.09 = 7,398.59 : x
  2. Step 2: Convert to fraction form
    13,366.91/18,446.09 = 7,398.59/x
  3. Step 3: Cross multiply
    13,366.91x = 18,446.09 × 7,398.59
  4. Step 4: Simplify right side
    13,366.91x = 136,474,927.79
  5. Step 5: Solve for x
    x = 136,474,927.79/13,366.91
  6. Step 6: Final answer
    x = 10,209.91

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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.