Home / 13,301.22-18,355.38-7,332.72

Finding the Fourth Proportional to 13,301.22, 18,355.38 and 7,332.72

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Solution

The fourth proportional to 13,301.22, 18,355.38 and 7,332.72 is: 10,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.22 : 18,355.38 = 7,332.72 : x
  2. Step 2: Convert to fraction form
    13,301.22/18,355.38 = 7,332.72/x
  3. Step 3: Cross multiply
    13,301.22x = 18,355.38 × 7,332.72
  4. Step 4: Simplify right side
    13,301.22x = 134,594,862.03
  5. Step 5: Solve for x
    x = 134,594,862.03/13,301.22
  6. Step 6: Final answer
    x = 10,118.99

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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.