Home / 11,645.29-16,070.84-6,340.20

Finding the Fourth Proportional to 11,645.29, 16,070.84 and 6,340.20

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Solution

The fourth proportional to 11,645.29, 16,070.84 and 6,340.20 is: 8,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.29 : 16,070.84 = 6,340.20 : x
  2. Step 2: Convert to fraction form
    11,645.29/16,070.84 = 6,340.20/x
  3. Step 3: Cross multiply
    11,645.29x = 16,070.84 × 6,340.20
  4. Step 4: Simplify right side
    11,645.29x = 101,892,339.77
  5. Step 5: Solve for x
    x = 101,892,339.77/11,645.29
  6. Step 6: Final answer
    x = 8,749.66

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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.