Home / 12,162.24-16,784.40-6,856.96

Finding the Fourth Proportional to 12,162.24, 16,784.40 and 6,856.96

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Solution

The fourth proportional to 12,162.24, 16,784.40 and 6,856.96 is: 9,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.24 : 16,784.40 = 6,856.96 : x
  2. Step 2: Convert to fraction form
    12,162.24/16,784.40 = 6,856.96/x
  3. Step 3: Cross multiply
    12,162.24x = 16,784.40 × 6,856.96
  4. Step 4: Simplify right side
    12,162.24x = 115,089,959.42
  5. Step 5: Solve for x
    x = 115,089,959.42/12,162.24
  6. Step 6: Final answer
    x = 9,462.89

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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.