Home / 9,856.21-13,599.53-5,663.65

Finding the Fourth Proportional to 9,856.21, 13,599.53 and 5,663.65

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Solution

The fourth proportional to 9,856.21, 13,599.53 and 5,663.65 is: 7,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,856.21 : 13,599.53 = 5,663.65 : x
  2. Step 2: Convert to fraction form
    9,856.21/13,599.53 = 5,663.65/x
  3. Step 3: Cross multiply
    9,856.21x = 13,599.53 × 5,663.65
  4. Step 4: Simplify right side
    9,856.21x = 77,022,924.25
  5. Step 5: Solve for x
    x = 77,022,924.25/9,856.21
  6. Step 6: Final answer
    x = 7,814.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.