Home / 11,891.20-16,409.28-6,586.24

Finding the Fourth Proportional to 11,891.20, 16,409.28 and 6,586.24

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Solution

The fourth proportional to 11,891.20, 16,409.28 and 6,586.24 is: 9,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.20 : 16,409.28 = 6,586.24 : x
  2. Step 2: Convert to fraction form
    11,891.20/16,409.28 = 6,586.24/x
  3. Step 3: Cross multiply
    11,891.20x = 16,409.28 × 6,586.24
  4. Step 4: Simplify right side
    11,891.20x = 108,075,456.31
  5. Step 5: Solve for x
    x = 108,075,456.31/11,891.20
  6. Step 6: Final answer
    x = 9,088.69

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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.