Home / 12,561.24-18,819.99-6,700.08

Finding the Fourth Proportional to 12,561.24, 18,819.99 and 6,700.08

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Solution

The fourth proportional to 12,561.24, 18,819.99 and 6,700.08 is: 10,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.24 : 18,819.99 = 6,700.08 : x
  2. Step 2: Convert to fraction form
    12,561.24/18,819.99 = 6,700.08/x
  3. Step 3: Cross multiply
    12,561.24x = 18,819.99 × 6,700.08
  4. Step 4: Simplify right side
    12,561.24x = 126,095,438.60
  5. Step 5: Solve for x
    x = 126,095,438.60/12,561.24
  6. Step 6: Final answer
    x = 10,038.45

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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.