Home / 8,176.59-11,280.20-6,401.07

Finding the Fourth Proportional to 8,176.59, 11,280.20 and 6,401.07

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Solution

The fourth proportional to 8,176.59, 11,280.20 and 6,401.07 is: 8,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.59 : 11,280.20 = 6,401.07 : x
  2. Step 2: Convert to fraction form
    8,176.59/11,280.20 = 6,401.07/x
  3. Step 3: Cross multiply
    8,176.59x = 11,280.20 × 6,401.07
  4. Step 4: Simplify right side
    8,176.59x = 72,205,317.81
  5. Step 5: Solve for x
    x = 72,205,317.81/8,176.59
  6. Step 6: Final answer
    x = 8,830.74

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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.