Home / 13,542.39-20,318.45-9,797.76

Finding the Fourth Proportional to 13,542.39, 20,318.45 and 9,797.76

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Solution

The fourth proportional to 13,542.39, 20,318.45 and 9,797.76 is: 14,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.39 : 20,318.45 = 9,797.76 : x
  2. Step 2: Convert to fraction form
    13,542.39/20,318.45 = 9,797.76/x
  3. Step 3: Cross multiply
    13,542.39x = 20,318.45 × 9,797.76
  4. Step 4: Simplify right side
    13,542.39x = 199,075,247.68
  5. Step 5: Solve for x
    x = 199,075,247.68/13,542.39
  6. Step 6: Final answer
    x = 14,700.16

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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.