Home / 13,999.76-20,987.68-6,204.32

Finding the Fourth Proportional to 13,999.76, 20,987.68 and 6,204.32

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Solution

The fourth proportional to 13,999.76, 20,987.68 and 6,204.32 is: 9,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.76 : 20,987.68 = 6,204.32 : x
  2. Step 2: Convert to fraction form
    13,999.76/20,987.68 = 6,204.32/x
  3. Step 3: Cross multiply
    13,999.76x = 20,987.68 × 6,204.32
  4. Step 4: Simplify right side
    13,999.76x = 130,214,282.78
  5. Step 5: Solve for x
    x = 130,214,282.78/13,999.76
  6. Step 6: Final answer
    x = 9,301.18

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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.