Home / 13,991.64-20,987.44-9,595.77

Finding the Fourth Proportional to 13,991.64, 20,987.44 and 9,595.77

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Solution

The fourth proportional to 13,991.64, 20,987.44 and 9,595.77 is: 14,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.64 : 20,987.44 = 9,595.77 : x
  2. Step 2: Convert to fraction form
    13,991.64/20,987.44 = 9,595.77/x
  3. Step 3: Cross multiply
    13,991.64x = 20,987.44 × 9,595.77
  4. Step 4: Simplify right side
    13,991.64x = 201,390,623.14
  5. Step 5: Solve for x
    x = 201,390,623.14/13,991.64
  6. Step 6: Final answer
    x = 14,393.64

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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.