Home / 15,026.45-20,736.38-8,312

Finding the Fourth Proportional to 15,026.45, 20,736.38 and 8,312

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Solution

The fourth proportional to 15,026.45, 20,736.38 and 8,312 is: 11,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.45 : 20,736.38 = 8,312 : x
  2. Step 2: Convert to fraction form
    15,026.45/20,736.38 = 8,312/x
  3. Step 3: Cross multiply
    15,026.45x = 20,736.38 × 8,312
  4. Step 4: Simplify right side
    15,026.45x = 172,360,749
  5. Step 5: Solve for x
    x = 172,360,749/15,026.45
  6. Step 6: Final answer
    x = 11,470.49

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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.