Home / 12,584.60-18,876.90-4,792.40

Finding the Fourth Proportional to 12,584.60, 18,876.90 and 4,792.40

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Solution

The fourth proportional to 12,584.60, 18,876.90 and 4,792.40 is: 7,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.60 : 18,876.90 = 4,792.40 : x
  2. Step 2: Convert to fraction form
    12,584.60/18,876.90 = 4,792.40/x
  3. Step 3: Cross multiply
    12,584.60x = 18,876.90 × 4,792.40
  4. Step 4: Simplify right side
    12,584.60x = 90,465,655.56
  5. Step 5: Solve for x
    x = 90,465,655.56/12,584.60
  6. Step 6: Final answer
    x = 7,188.60

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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.