Home / 11,385.72-15,712.44-6,670.44

Finding the Fourth Proportional to 11,385.72, 15,712.44 and 6,670.44

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Solution

The fourth proportional to 11,385.72, 15,712.44 and 6,670.44 is: 9,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.72 : 15,712.44 = 6,670.44 : x
  2. Step 2: Convert to fraction form
    11,385.72/15,712.44 = 6,670.44/x
  3. Step 3: Cross multiply
    11,385.72x = 15,712.44 × 6,670.44
  4. Step 4: Simplify right side
    11,385.72x = 104,808,888.27
  5. Step 5: Solve for x
    x = 104,808,888.27/11,385.72
  6. Step 6: Final answer
    x = 9,205.29

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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.