Home / 13,985.13-20,977.65-9,589.26

Finding the Fourth Proportional to 13,985.13, 20,977.65 and 9,589.26

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Solution

The fourth proportional to 13,985.13, 20,977.65 and 9,589.26 is: 14,383.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.13 : 20,977.65 = 9,589.26 : x
  2. Step 2: Convert to fraction form
    13,985.13/20,977.65 = 9,589.26/x
  3. Step 3: Cross multiply
    13,985.13x = 20,977.65 × 9,589.26
  4. Step 4: Simplify right side
    13,985.13x = 201,160,140.04
  5. Step 5: Solve for x
    x = 201,160,140.04/13,985.13
  6. Step 6: Final answer
    x = 14,383.86

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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.