Home / 13,987.08-20,976.15-4,625.36

Finding the Fourth Proportional to 13,987.08, 20,976.15 and 4,625.36

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Solution

The fourth proportional to 13,987.08, 20,976.15 and 4,625.36 is: 6,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.08 : 20,976.15 = 4,625.36 : x
  2. Step 2: Convert to fraction form
    13,987.08/20,976.15 = 4,625.36/x
  3. Step 3: Cross multiply
    13,987.08x = 20,976.15 × 4,625.36
  4. Step 4: Simplify right side
    13,987.08x = 97,022,140.28
  5. Step 5: Solve for x
    x = 97,022,140.28/13,987.08
  6. Step 6: Final answer
    x = 6,936.55

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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.