Home / 12,977.77-19,438.38-8,530.41

Finding the Fourth Proportional to 12,977.77, 19,438.38 and 8,530.41

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Solution

The fourth proportional to 12,977.77, 19,438.38 and 8,530.41 is: 12,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.77 : 19,438.38 = 8,530.41 : x
  2. Step 2: Convert to fraction form
    12,977.77/19,438.38 = 8,530.41/x
  3. Step 3: Cross multiply
    12,977.77x = 19,438.38 × 8,530.41
  4. Step 4: Simplify right side
    12,977.77x = 165,817,424.03
  5. Step 5: Solve for x
    x = 165,817,424.03/12,977.77
  6. Step 6: Final answer
    x = 12,777.04

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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.