Home / 13,197.77-19,777.70-7,934.93

Finding the Fourth Proportional to 13,197.77, 19,777.70 and 7,934.93

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Solution

The fourth proportional to 13,197.77, 19,777.70 and 7,934.93 is: 11,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.77 : 19,777.70 = 7,934.93 : x
  2. Step 2: Convert to fraction form
    13,197.77/19,777.70 = 7,934.93/x
  3. Step 3: Cross multiply
    13,197.77x = 19,777.70 × 7,934.93
  4. Step 4: Simplify right side
    13,197.77x = 156,934,586.01
  5. Step 5: Solve for x
    x = 156,934,586.01/13,197.77
  6. Step 6: Final answer
    x = 11,891.00

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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.