Home / 8,117.60-12,176.40-4,661.60

Finding the Fourth Proportional to 8,117.60, 12,176.40 and 4,661.60

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Solution

The fourth proportional to 8,117.60, 12,176.40 and 4,661.60 is: 6,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.60 : 12,176.40 = 4,661.60 : x
  2. Step 2: Convert to fraction form
    8,117.60/12,176.40 = 4,661.60/x
  3. Step 3: Cross multiply
    8,117.60x = 12,176.40 × 4,661.60
  4. Step 4: Simplify right side
    8,117.60x = 56,761,506.24
  5. Step 5: Solve for x
    x = 56,761,506.24/8,117.60
  6. Step 6: Final answer
    x = 6,992.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.