Home / 15,335.49-21,163.20-8,963.76

Finding the Fourth Proportional to 15,335.49, 21,163.20 and 8,963.76

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Solution

The fourth proportional to 15,335.49, 21,163.20 and 8,963.76 is: 12,370.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.49 : 21,163.20 = 8,963.76 : x
  2. Step 2: Convert to fraction form
    15,335.49/21,163.20 = 8,963.76/x
  3. Step 3: Cross multiply
    15,335.49x = 21,163.20 × 8,963.76
  4. Step 4: Simplify right side
    15,335.49x = 189,701,845.63
  5. Step 5: Solve for x
    x = 189,701,845.63/15,335.49
  6. Step 6: Final answer
    x = 12,370.12

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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.