Home / 12,758.88-19,113.36-8,362.92

Finding the Fourth Proportional to 12,758.88, 19,113.36 and 8,362.92

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Solution

The fourth proportional to 12,758.88, 19,113.36 and 8,362.92 is: 12,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.88 : 19,113.36 = 8,362.92 : x
  2. Step 2: Convert to fraction form
    12,758.88/19,113.36 = 8,362.92/x
  3. Step 3: Cross multiply
    12,758.88x = 19,113.36 × 8,362.92
  4. Step 4: Simplify right side
    12,758.88x = 159,843,500.61
  5. Step 5: Solve for x
    x = 159,843,500.61/12,758.88
  6. Step 6: Final answer
    x = 12,528.02

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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.