Home / 13,301.28-19,920.13-9,356.58

Finding the Fourth Proportional to 13,301.28, 19,920.13 and 9,356.58

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Solution

The fourth proportional to 13,301.28, 19,920.13 and 9,356.58 is: 14,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.28 : 19,920.13 = 9,356.58 : x
  2. Step 2: Convert to fraction form
    13,301.28/19,920.13 = 9,356.58/x
  3. Step 3: Cross multiply
    13,301.28x = 19,920.13 × 9,356.58
  4. Step 4: Simplify right side
    13,301.28x = 186,384,266.56
  5. Step 5: Solve for x
    x = 186,384,266.56/13,301.28
  6. Step 6: Final answer
    x = 14,012.51

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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.