Home / 12,885.36-19,335.33-5,489.06

Finding the Fourth Proportional to 12,885.36, 19,335.33 and 5,489.06

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Solution

The fourth proportional to 12,885.36, 19,335.33 and 5,489.06 is: 8,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.36 : 19,335.33 = 5,489.06 : x
  2. Step 2: Convert to fraction form
    12,885.36/19,335.33 = 5,489.06/x
  3. Step 3: Cross multiply
    12,885.36x = 19,335.33 × 5,489.06
  4. Step 4: Simplify right side
    12,885.36x = 106,132,689.81
  5. Step 5: Solve for x
    x = 106,132,689.81/12,885.36
  6. Step 6: Final answer
    x = 8,236.69

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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.