Home / 12,214.60-16,856.15-6,909.30

Finding the Fourth Proportional to 12,214.60, 16,856.15 and 6,909.30

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Solution

The fourth proportional to 12,214.60, 16,856.15 and 6,909.30 is: 9,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.60 : 16,856.15 = 6,909.30 : x
  2. Step 2: Convert to fraction form
    12,214.60/16,856.15 = 6,909.30/x
  3. Step 3: Cross multiply
    12,214.60x = 16,856.15 × 6,909.30
  4. Step 4: Simplify right side
    12,214.60x = 116,464,162.65
  5. Step 5: Solve for x
    x = 116,464,162.65/12,214.60
  6. Step 6: Final answer
    x = 9,534.83

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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.