Home / 13,318.26-19,979.55-6,392.76

Finding the Fourth Proportional to 13,318.26, 19,979.55 and 6,392.76

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Solution

The fourth proportional to 13,318.26, 19,979.55 and 6,392.76 is: 9,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.26 : 19,979.55 = 6,392.76 : x
  2. Step 2: Convert to fraction form
    13,318.26/19,979.55 = 6,392.76/x
  3. Step 3: Cross multiply
    13,318.26x = 19,979.55 × 6,392.76
  4. Step 4: Simplify right side
    13,318.26x = 127,724,468.06
  5. Step 5: Solve for x
    x = 127,724,468.06/13,318.26
  6. Step 6: Final answer
    x = 9,590.18

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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.