Home / 13,298.11-18,351.15-7,329.80

Finding the Fourth Proportional to 13,298.11, 18,351.15 and 7,329.80

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Solution

The fourth proportional to 13,298.11, 18,351.15 and 7,329.80 is: 10,114.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.11 : 18,351.15 = 7,329.80 : x
  2. Step 2: Convert to fraction form
    13,298.11/18,351.15 = 7,329.80/x
  3. Step 3: Cross multiply
    13,298.11x = 18,351.15 × 7,329.80
  4. Step 4: Simplify right side
    13,298.11x = 134,510,259.27
  5. Step 5: Solve for x
    x = 134,510,259.27/13,298.11
  6. Step 6: Final answer
    x = 10,114.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.