Home / 12,291.44-16,961.52-6,985.52

Finding the Fourth Proportional to 12,291.44, 16,961.52 and 6,985.52

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Solution

The fourth proportional to 12,291.44, 16,961.52 and 6,985.52 is: 9,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.44 : 16,961.52 = 6,985.52 : x
  2. Step 2: Convert to fraction form
    12,291.44/16,961.52 = 6,985.52/x
  3. Step 3: Cross multiply
    12,291.44x = 16,961.52 × 6,985.52
  4. Step 4: Simplify right side
    12,291.44x = 118,485,037.19
  5. Step 5: Solve for x
    x = 118,485,037.19/12,291.44
  6. Step 6: Final answer
    x = 9,639.64

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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.