Home / 12,983.40-19,475.10-5,197.80

Finding the Fourth Proportional to 12,983.40, 19,475.10 and 5,197.80

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Solution

The fourth proportional to 12,983.40, 19,475.10 and 5,197.80 is: 7,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.40 : 19,475.10 = 5,197.80 : x
  2. Step 2: Convert to fraction form
    12,983.40/19,475.10 = 5,197.80/x
  3. Step 3: Cross multiply
    12,983.40x = 19,475.10 × 5,197.80
  4. Step 4: Simplify right side
    12,983.40x = 101,227,674.78
  5. Step 5: Solve for x
    x = 101,227,674.78/12,983.40
  6. Step 6: Final answer
    x = 7,796.70

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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.