Home / 12,919.22-17,828.28-7,253.51

Finding the Fourth Proportional to 12,919.22, 17,828.28 and 7,253.51

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Solution

The fourth proportional to 12,919.22, 17,828.28 and 7,253.51 is: 10,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.22 : 17,828.28 = 7,253.51 : x
  2. Step 2: Convert to fraction form
    12,919.22/17,828.28 = 7,253.51/x
  3. Step 3: Cross multiply
    12,919.22x = 17,828.28 × 7,253.51
  4. Step 4: Simplify right side
    12,919.22x = 129,317,607.26
  5. Step 5: Solve for x
    x = 129,317,607.26/12,919.22
  6. Step 6: Final answer
    x = 10,009.71

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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.