Home / 13,108.92-19,663.34-5,317.71

Finding the Fourth Proportional to 13,108.92, 19,663.34 and 5,317.71

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Solution

The fourth proportional to 13,108.92, 19,663.34 and 5,317.71 is: 7,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.92 : 19,663.34 = 5,317.71 : x
  2. Step 2: Convert to fraction form
    13,108.92/19,663.34 = 5,317.71/x
  3. Step 3: Cross multiply
    13,108.92x = 19,663.34 × 5,317.71
  4. Step 4: Simplify right side
    13,108.92x = 104,563,913.16
  5. Step 5: Solve for x
    x = 104,563,913.16/13,108.92
  6. Step 6: Final answer
    x = 7,976.55

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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.