Home / 11,861.67-17,799.57-6,870.45

Finding the Fourth Proportional to 11,861.67, 17,799.57 and 6,870.45

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Solution

The fourth proportional to 11,861.67, 17,799.57 and 6,870.45 is: 10,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.67 : 17,799.57 = 6,870.45 : x
  2. Step 2: Convert to fraction form
    11,861.67/17,799.57 = 6,870.45/x
  3. Step 3: Cross multiply
    11,861.67x = 17,799.57 × 6,870.45
  4. Step 4: Simplify right side
    11,861.67x = 122,291,055.71
  5. Step 5: Solve for x
    x = 122,291,055.71/11,861.67
  6. Step 6: Final answer
    x = 10,309.77

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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.