Home / 11,690.19-16,131.65-6,384.92

Finding the Fourth Proportional to 11,690.19, 16,131.65 and 6,384.92

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Solution

The fourth proportional to 11,690.19, 16,131.65 and 6,384.92 is: 8,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.19 : 16,131.65 = 6,384.92 : x
  2. Step 2: Convert to fraction form
    11,690.19/16,131.65 = 6,384.92/x
  3. Step 3: Cross multiply
    11,690.19x = 16,131.65 × 6,384.92
  4. Step 4: Simplify right side
    11,690.19x = 102,999,182.14
  5. Step 5: Solve for x
    x = 102,999,182.14/11,690.19
  6. Step 6: Final answer
    x = 8,810.74

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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.