Home / 11,645.30-16,070.60-6,340.12

Finding the Fourth Proportional to 11,645.30, 16,070.60 and 6,340.12

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Solution

The fourth proportional to 11,645.30, 16,070.60 and 6,340.12 is: 8,749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.30 : 16,070.60 = 6,340.12 : x
  2. Step 2: Convert to fraction form
    11,645.30/16,070.60 = 6,340.12/x
  3. Step 3: Cross multiply
    11,645.30x = 16,070.60 × 6,340.12
  4. Step 4: Simplify right side
    11,645.30x = 101,889,532.47
  5. Step 5: Solve for x
    x = 101,889,532.47/11,645.30
  6. Step 6: Final answer
    x = 8,749.41

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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.