Home / 15,246.24-21,038.64-8,531.36

Finding the Fourth Proportional to 15,246.24, 21,038.64 and 8,531.36

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Solution

The fourth proportional to 15,246.24, 21,038.64 and 8,531.36 is: 11,772.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,246.24 : 21,038.64 = 8,531.36 : x
  2. Step 2: Convert to fraction form
    15,246.24/21,038.64 = 8,531.36/x
  3. Step 3: Cross multiply
    15,246.24x = 21,038.64 × 8,531.36
  4. Step 4: Simplify right side
    15,246.24x = 179,488,211.75
  5. Step 5: Solve for x
    x = 179,488,211.75/15,246.24
  6. Step 6: Final answer
    x = 11,772.62

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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.