Home / 12,977.14-19,464.90-5,180.35

Finding the Fourth Proportional to 12,977.14, 19,464.90 and 5,180.35

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Solution

The fourth proportional to 12,977.14, 19,464.90 and 5,180.35 is: 7,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.14 : 19,464.90 = 5,180.35 : x
  2. Step 2: Convert to fraction form
    12,977.14/19,464.90 = 5,180.35/x
  3. Step 3: Cross multiply
    12,977.14x = 19,464.90 × 5,180.35
  4. Step 4: Simplify right side
    12,977.14x = 100,834,994.72
  5. Step 5: Solve for x
    x = 100,834,994.72/12,977.14
  6. Step 6: Final answer
    x = 7,770.20

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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.