Home / 8,746.08-12,072.96-6,406.80

Finding the Fourth Proportional to 8,746.08, 12,072.96 and 6,406.80

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Solution

The fourth proportional to 8,746.08, 12,072.96 and 6,406.80 is: 8,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.08 : 12,072.96 = 6,406.80 : x
  2. Step 2: Convert to fraction form
    8,746.08/12,072.96 = 6,406.80/x
  3. Step 3: Cross multiply
    8,746.08x = 12,072.96 × 6,406.80
  4. Step 4: Simplify right side
    8,746.08x = 77,349,040.13
  5. Step 5: Solve for x
    x = 77,349,040.13/8,746.08
  6. Step 6: Final answer
    x = 8,843.85

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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.