Home / 13,117.29-19,661.61-6,458.37

Finding the Fourth Proportional to 13,117.29, 19,661.61 and 6,458.37

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Solution

The fourth proportional to 13,117.29, 19,661.61 and 6,458.37 is: 9,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.29 : 19,661.61 = 6,458.37 : x
  2. Step 2: Convert to fraction form
    13,117.29/19,661.61 = 6,458.37/x
  3. Step 3: Cross multiply
    13,117.29x = 19,661.61 × 6,458.37
  4. Step 4: Simplify right side
    13,117.29x = 126,981,853.87
  5. Step 5: Solve for x
    x = 126,981,853.87/13,117.29
  6. Step 6: Final answer
    x = 9,680.50

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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.