Home / 8,558.40-12,841.20-4,665.60

Finding the Fourth Proportional to 8,558.40, 12,841.20 and 4,665.60

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Solution

The fourth proportional to 8,558.40, 12,841.20 and 4,665.60 is: 7,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.40 : 12,841.20 = 4,665.60 : x
  2. Step 2: Convert to fraction form
    8,558.40/12,841.20 = 4,665.60/x
  3. Step 3: Cross multiply
    8,558.40x = 12,841.20 × 4,665.60
  4. Step 4: Simplify right side
    8,558.40x = 59,911,902.72
  5. Step 5: Solve for x
    x = 59,911,902.72/8,558.40
  6. Step 6: Final answer
    x = 7,000.36

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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.