Home / 13,122.52-19,666.98-7,199.32

Finding the Fourth Proportional to 13,122.52, 19,666.98 and 7,199.32

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Solution

The fourth proportional to 13,122.52, 19,666.98 and 7,199.32 is: 10,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.52 : 19,666.98 = 7,199.32 : x
  2. Step 2: Convert to fraction form
    13,122.52/19,666.98 = 7,199.32/x
  3. Step 3: Cross multiply
    13,122.52x = 19,666.98 × 7,199.32
  4. Step 4: Simplify right side
    13,122.52x = 141,588,882.45
  5. Step 5: Solve for x
    x = 141,588,882.45/13,122.52
  6. Step 6: Final answer
    x = 10,789.76

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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.