Home / 12,967.95-19,455.01-4,202.87

Finding the Fourth Proportional to 12,967.95, 19,455.01 and 4,202.87

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Solution

The fourth proportional to 12,967.95, 19,455.01 and 4,202.87 is: 6,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,967.95 : 19,455.01 = 4,202.87 : x
  2. Step 2: Convert to fraction form
    12,967.95/19,455.01 = 4,202.87/x
  3. Step 3: Cross multiply
    12,967.95x = 19,455.01 × 4,202.87
  4. Step 4: Simplify right side
    12,967.95x = 81,766,856.86
  5. Step 5: Solve for x
    x = 81,766,856.86/12,967.95
  6. Step 6: Final answer
    x = 6,305.30

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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.