Home / 11,586.80-15,989.78-6,281.63

Finding the Fourth Proportional to 11,586.80, 15,989.78 and 6,281.63

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Solution

The fourth proportional to 11,586.80, 15,989.78 and 6,281.63 is: 8,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.80 : 15,989.78 = 6,281.63 : x
  2. Step 2: Convert to fraction form
    11,586.80/15,989.78 = 6,281.63/x
  3. Step 3: Cross multiply
    11,586.80x = 15,989.78 × 6,281.63
  4. Step 4: Simplify right side
    11,586.80x = 100,441,814.82
  5. Step 5: Solve for x
    x = 100,441,814.82/11,586.80
  6. Step 6: Final answer
    x = 8,668.64

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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.