Home / 13,108.32-19,663.56-5,317.20

Finding the Fourth Proportional to 13,108.32, 19,663.56 and 5,317.20

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Solution

The fourth proportional to 13,108.32, 19,663.56 and 5,317.20 is: 7,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.32 : 19,663.56 = 5,317.20 : x
  2. Step 2: Convert to fraction form
    13,108.32/19,663.56 = 5,317.20/x
  3. Step 3: Cross multiply
    13,108.32x = 19,663.56 × 5,317.20
  4. Step 4: Simplify right side
    13,108.32x = 104,555,081.23
  5. Step 5: Solve for x
    x = 104,555,081.23/13,108.32
  6. Step 6: Final answer
    x = 7,976.24

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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.