Home / 13,632.51-20,451.14-5,317.05

Finding the Fourth Proportional to 13,632.51, 20,451.14 and 5,317.05

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Solution

The fourth proportional to 13,632.51, 20,451.14 and 5,317.05 is: 7,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.51 : 20,451.14 = 5,317.05 : x
  2. Step 2: Convert to fraction form
    13,632.51/20,451.14 = 5,317.05/x
  3. Step 3: Cross multiply
    13,632.51x = 20,451.14 × 5,317.05
  4. Step 4: Simplify right side
    13,632.51x = 108,739,707.35
  5. Step 5: Solve for x
    x = 108,739,707.35/13,632.51
  6. Step 6: Final answer
    x = 7,976.50

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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.