Home / 10,790.65-16,181.72-5,242.35

Finding the Fourth Proportional to 10,790.65, 16,181.72 and 5,242.35

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Solution

The fourth proportional to 10,790.65, 16,181.72 and 5,242.35 is: 7,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.65 : 16,181.72 = 5,242.35 : x
  2. Step 2: Convert to fraction form
    10,790.65/16,181.72 = 5,242.35/x
  3. Step 3: Cross multiply
    10,790.65x = 16,181.72 × 5,242.35
  4. Step 4: Simplify right side
    10,790.65x = 84,830,239.84
  5. Step 5: Solve for x
    x = 84,830,239.84/10,790.65
  6. Step 6: Final answer
    x = 7,861.46

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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.