Home / 12,972.44-19,462.74-4,646.78

Finding the Fourth Proportional to 12,972.44, 19,462.74 and 4,646.78

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Solution

The fourth proportional to 12,972.44, 19,462.74 and 4,646.78 is: 6,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.44 : 19,462.74 = 4,646.78 : x
  2. Step 2: Convert to fraction form
    12,972.44/19,462.74 = 4,646.78/x
  3. Step 3: Cross multiply
    12,972.44x = 19,462.74 × 4,646.78
  4. Step 4: Simplify right side
    12,972.44x = 90,439,070.98
  5. Step 5: Solve for x
    x = 90,439,070.98/12,972.44
  6. Step 6: Final answer
    x = 6,971.63

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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.