Home / 15,333.35-21,161.39-8,620.63

Finding the Fourth Proportional to 15,333.35, 21,161.39 and 8,620.63

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Solution

The fourth proportional to 15,333.35, 21,161.39 and 8,620.63 is: 11,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333.35 : 21,161.39 = 8,620.63 : x
  2. Step 2: Convert to fraction form
    15,333.35/21,161.39 = 8,620.63/x
  3. Step 3: Cross multiply
    15,333.35x = 21,161.39 × 8,620.63
  4. Step 4: Simplify right side
    15,333.35x = 182,424,417.47
  5. Step 5: Solve for x
    x = 182,424,417.47/15,333.35
  6. Step 6: Final answer
    x = 11,897.24

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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.