Home / 11,913.02-16,440.04-6,607.92

Finding the Fourth Proportional to 11,913.02, 16,440.04 and 6,607.92

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Solution

The fourth proportional to 11,913.02, 16,440.04 and 6,607.92 is: 9,118.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.02 : 16,440.04 = 6,607.92 : x
  2. Step 2: Convert to fraction form
    11,913.02/16,440.04 = 6,607.92/x
  3. Step 3: Cross multiply
    11,913.02x = 16,440.04 × 6,607.92
  4. Step 4: Simplify right side
    11,913.02x = 108,634,469.12
  5. Step 5: Solve for x
    x = 108,634,469.12/11,913.02
  6. Step 6: Final answer
    x = 9,118.97

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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.