Home / 13,124.45-19,695.89-11,869.66

Finding the Fourth Proportional to 13,124.45, 19,695.89 and 11,869.66

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Solution

The fourth proportional to 13,124.45, 19,695.89 and 11,869.66 is: 17,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.45 : 19,695.89 = 11,869.66 : x
  2. Step 2: Convert to fraction form
    13,124.45/19,695.89 = 11,869.66/x
  3. Step 3: Cross multiply
    13,124.45x = 19,695.89 × 11,869.66
  4. Step 4: Simplify right side
    13,124.45x = 233,783,498.13
  5. Step 5: Solve for x
    x = 233,783,498.13/13,124.45
  6. Step 6: Final answer
    x = 17,812.83

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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.