Home / 10,491.12-15,736.80-3,566.16

Finding the Fourth Proportional to 10,491.12, 15,736.80 and 3,566.16

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Solution

The fourth proportional to 10,491.12, 15,736.80 and 3,566.16 is: 5,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.12 : 15,736.80 = 3,566.16 : x
  2. Step 2: Convert to fraction form
    10,491.12/15,736.80 = 3,566.16/x
  3. Step 3: Cross multiply
    10,491.12x = 15,736.80 × 3,566.16
  4. Step 4: Simplify right side
    10,491.12x = 56,119,946.69
  5. Step 5: Solve for x
    x = 56,119,946.69/10,491.12
  6. Step 6: Final answer
    x = 5,349.28

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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.