Home / 11,814.08-16,289.76-9,422.18

Finding the Fourth Proportional to 11,814.08, 16,289.76 and 9,422.18

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Solution

The fourth proportional to 11,814.08, 16,289.76 and 9,422.18 is: 12,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.08 : 16,289.76 = 9,422.18 : x
  2. Step 2: Convert to fraction form
    11,814.08/16,289.76 = 9,422.18/x
  3. Step 3: Cross multiply
    11,814.08x = 16,289.76 × 9,422.18
  4. Step 4: Simplify right side
    11,814.08x = 153,484,969.43
  5. Step 5: Solve for x
    x = 153,484,969.43/11,814.08
  6. Step 6: Final answer
    x = 12,991.70

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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.