Home / 10,415.32-15,622.80-2,623.96

Finding the Fourth Proportional to 10,415.32, 15,622.80 and 2,623.96

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Solution

The fourth proportional to 10,415.32, 15,622.80 and 2,623.96 is: 3,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.32 : 15,622.80 = 2,623.96 : x
  2. Step 2: Convert to fraction form
    10,415.32/15,622.80 = 2,623.96/x
  3. Step 3: Cross multiply
    10,415.32x = 15,622.80 × 2,623.96
  4. Step 4: Simplify right side
    10,415.32x = 40,993,602.29
  5. Step 5: Solve for x
    x = 40,993,602.29/10,415.32
  6. Step 6: Final answer
    x = 3,935.89

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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.