Home / 12,856.86-19,265.58-6,266.70

Finding the Fourth Proportional to 12,856.86, 19,265.58 and 6,266.70

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Solution

The fourth proportional to 12,856.86, 19,265.58 and 6,266.70 is: 9,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856.86 : 19,265.58 = 6,266.70 : x
  2. Step 2: Convert to fraction form
    12,856.86/19,265.58 = 6,266.70/x
  3. Step 3: Cross multiply
    12,856.86x = 19,265.58 × 6,266.70
  4. Step 4: Simplify right side
    12,856.86x = 120,731,610.19
  5. Step 5: Solve for x
    x = 120,731,610.19/12,856.86
  6. Step 6: Final answer
    x = 9,390.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.