Home / 8,678.02-11,975.61-4,699.04

Finding the Fourth Proportional to 8,678.02, 11,975.61 and 4,699.04

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Solution

The fourth proportional to 8,678.02, 11,975.61 and 4,699.04 is: 6,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.02 : 11,975.61 = 4,699.04 : x
  2. Step 2: Convert to fraction form
    8,678.02/11,975.61 = 4,699.04/x
  3. Step 3: Cross multiply
    8,678.02x = 11,975.61 × 4,699.04
  4. Step 4: Simplify right side
    8,678.02x = 56,273,846.92
  5. Step 5: Solve for x
    x = 56,273,846.92/8,678.02
  6. Step 6: Final answer
    x = 6,484.64

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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.