Home / 9,985.14-13,779.68-6,005.48

Finding the Fourth Proportional to 9,985.14, 13,779.68 and 6,005.48

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Solution

The fourth proportional to 9,985.14, 13,779.68 and 6,005.48 is: 8,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.14 : 13,779.68 = 6,005.48 : x
  2. Step 2: Convert to fraction form
    9,985.14/13,779.68 = 6,005.48/x
  3. Step 3: Cross multiply
    9,985.14x = 13,779.68 × 6,005.48
  4. Step 4: Simplify right side
    9,985.14x = 82,753,493.72
  5. Step 5: Solve for x
    x = 82,753,493.72/9,985.14
  6. Step 6: Final answer
    x = 8,287.66

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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.