Home / 12,214.72-16,856.40-7,246.72

Finding the Fourth Proportional to 12,214.72, 16,856.40 and 7,246.72

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Solution

The fourth proportional to 12,214.72, 16,856.40 and 7,246.72 is: 10,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.72 : 16,856.40 = 7,246.72 : x
  2. Step 2: Convert to fraction form
    12,214.72/16,856.40 = 7,246.72/x
  3. Step 3: Cross multiply
    12,214.72x = 16,856.40 × 7,246.72
  4. Step 4: Simplify right side
    12,214.72x = 122,153,611.01
  5. Step 5: Solve for x
    x = 122,153,611.01/12,214.72
  6. Step 6: Final answer
    x = 10,000.52

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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.