Home / 10,222.72-15,338.40-4,382.08

Finding the Fourth Proportional to 10,222.72, 15,338.40 and 4,382.08

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Solution

The fourth proportional to 10,222.72, 15,338.40 and 4,382.08 is: 6,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.72 : 15,338.40 = 4,382.08 : x
  2. Step 2: Convert to fraction form
    10,222.72/15,338.40 = 4,382.08/x
  3. Step 3: Cross multiply
    10,222.72x = 15,338.40 × 4,382.08
  4. Step 4: Simplify right side
    10,222.72x = 67,214,095.87
  5. Step 5: Solve for x
    x = 67,214,095.87/10,222.72
  6. Step 6: Final answer
    x = 6,574.97

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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.