Home / 11,099.43-15,319.53-6,386.31

Finding the Fourth Proportional to 11,099.43, 15,319.53 and 6,386.31

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Solution

The fourth proportional to 11,099.43, 15,319.53 and 6,386.31 is: 8,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.43 : 15,319.53 = 6,386.31 : x
  2. Step 2: Convert to fraction form
    11,099.43/15,319.53 = 6,386.31/x
  3. Step 3: Cross multiply
    11,099.43x = 15,319.53 × 6,386.31
  4. Step 4: Simplify right side
    11,099.43x = 97,835,267.63
  5. Step 5: Solve for x
    x = 97,835,267.63/11,099.43
  6. Step 6: Final answer
    x = 8,814.44

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1.5x scale

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.