Home / 11,784.20-16,262.28-6,479.10

Finding the Fourth Proportional to 11,784.20, 16,262.28 and 6,479.10

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Solution

The fourth proportional to 11,784.20, 16,262.28 and 6,479.10 is: 8,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.20 : 16,262.28 = 6,479.10 : x
  2. Step 2: Convert to fraction form
    11,784.20/16,262.28 = 6,479.10/x
  3. Step 3: Cross multiply
    11,784.20x = 16,262.28 × 6,479.10
  4. Step 4: Simplify right side
    11,784.20x = 105,364,938.35
  5. Step 5: Solve for x
    x = 105,364,938.35/11,784.20
  6. Step 6: Final answer
    x = 8,941.21

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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.