Home / 11,745.10-16,208.71-6,440.11

Finding the Fourth Proportional to 11,745.10, 16,208.71 and 6,440.11

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Solution

The fourth proportional to 11,745.10, 16,208.71 and 6,440.11 is: 8,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.10 : 16,208.71 = 6,440.11 : x
  2. Step 2: Convert to fraction form
    11,745.10/16,208.71 = 6,440.11/x
  3. Step 3: Cross multiply
    11,745.10x = 16,208.71 × 6,440.11
  4. Step 4: Simplify right side
    11,745.10x = 104,385,818.74
  5. Step 5: Solve for x
    x = 104,385,818.74/11,745.10
  6. Step 6: Final answer
    x = 8,887.60

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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.