Home / 11,184.21-15,411.47-8,650.94

Finding the Fourth Proportional to 11,184.21, 15,411.47 and 8,650.94

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Solution

The fourth proportional to 11,184.21, 15,411.47 and 8,650.94 is: 11,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,184.21 : 15,411.47 = 8,650.94 : x
  2. Step 2: Convert to fraction form
    11,184.21/15,411.47 = 8,650.94/x
  3. Step 3: Cross multiply
    11,184.21x = 15,411.47 × 8,650.94
  4. Step 4: Simplify right side
    11,184.21x = 133,323,581.97
  5. Step 5: Solve for x
    x = 133,323,581.97/11,184.21
  6. Step 6: Final answer
    x = 11,920.70

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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.