Home / 12,573.24-18,857.70-5,177.40

Finding the Fourth Proportional to 12,573.24, 18,857.70 and 5,177.40

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Solution

The fourth proportional to 12,573.24, 18,857.70 and 5,177.40 is: 7,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.24 : 18,857.70 = 5,177.40 : x
  2. Step 2: Convert to fraction form
    12,573.24/18,857.70 = 5,177.40/x
  3. Step 3: Cross multiply
    12,573.24x = 18,857.70 × 5,177.40
  4. Step 4: Simplify right side
    12,573.24x = 97,633,855.98
  5. Step 5: Solve for x
    x = 97,633,855.98/12,573.24
  6. Step 6: Final answer
    x = 7,765.21

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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.