Home / 11,784.13-16,262.05-6,478.84

Finding the Fourth Proportional to 11,784.13, 16,262.05 and 6,478.84

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Solution

The fourth proportional to 11,784.13, 16,262.05 and 6,478.84 is: 8,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.13 : 16,262.05 = 6,478.84 : x
  2. Step 2: Convert to fraction form
    11,784.13/16,262.05 = 6,478.84/x
  3. Step 3: Cross multiply
    11,784.13x = 16,262.05 × 6,478.84
  4. Step 4: Simplify right side
    11,784.13x = 105,359,172.16
  5. Step 5: Solve for x
    x = 105,359,172.16/11,784.13
  6. Step 6: Final answer
    x = 8,940.77

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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.