Home / 13,383.11-20,075.11-6,359.49

Finding the Fourth Proportional to 13,383.11, 20,075.11 and 6,359.49

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Solution

The fourth proportional to 13,383.11, 20,075.11 and 6,359.49 is: 9,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.11 : 20,075.11 = 6,359.49 : x
  2. Step 2: Convert to fraction form
    13,383.11/20,075.11 = 6,359.49/x
  3. Step 3: Cross multiply
    13,383.11x = 20,075.11 × 6,359.49
  4. Step 4: Simplify right side
    13,383.11x = 127,667,445.40
  5. Step 5: Solve for x
    x = 127,667,445.40/13,383.11
  6. Step 6: Final answer
    x = 9,539.45

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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.