Home / 8,466.40-12,703.20-4,081.60

Finding the Fourth Proportional to 8,466.40, 12,703.20 and 4,081.60

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Solution

The fourth proportional to 8,466.40, 12,703.20 and 4,081.60 is: 6,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.40 : 12,703.20 = 4,081.60 : x
  2. Step 2: Convert to fraction form
    8,466.40/12,703.20 = 4,081.60/x
  3. Step 3: Cross multiply
    8,466.40x = 12,703.20 × 4,081.60
  4. Step 4: Simplify right side
    8,466.40x = 51,849,381.12
  5. Step 5: Solve for x
    x = 51,849,381.12/8,466.40
  6. Step 6: Final answer
    x = 6,124.14

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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.