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Finding the Fourth Proportional to 11,339.80, 15,649.19 and 6,303.83

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Solution

The fourth proportional to 11,339.80, 15,649.19 and 6,303.83 is: 8,699.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.80 : 15,649.19 = 6,303.83 : x
  2. Step 2: Convert to fraction form
    11,339.80/15,649.19 = 6,303.83/x
  3. Step 3: Cross multiply
    11,339.80x = 15,649.19 × 6,303.83
  4. Step 4: Simplify right side
    11,339.80x = 98,649,762.76
  5. Step 5: Solve for x
    x = 98,649,762.76/11,339.80
  6. Step 6: Final answer
    x = 8,699.43

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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.