Home / 11,689.24-16,131.54-6,384.28

Finding the Fourth Proportional to 11,689.24, 16,131.54 and 6,384.28

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Solution

The fourth proportional to 11,689.24, 16,131.54 and 6,384.28 is: 8,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.24 : 16,131.54 = 6,384.28 : x
  2. Step 2: Convert to fraction form
    11,689.24/16,131.54 = 6,384.28/x
  3. Step 3: Cross multiply
    11,689.24x = 16,131.54 × 6,384.28
  4. Step 4: Simplify right side
    11,689.24x = 102,988,268.19
  5. Step 5: Solve for x
    x = 102,988,268.19/11,689.24
  6. Step 6: Final answer
    x = 8,810.52

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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.