Home / 8,280.10-12,432.30-4,999.60

Finding the Fourth Proportional to 8,280.10, 12,432.30 and 4,999.60

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Solution

The fourth proportional to 8,280.10, 12,432.30 and 4,999.60 is: 7,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.10 : 12,432.30 = 4,999.60 : x
  2. Step 2: Convert to fraction form
    8,280.10/12,432.30 = 4,999.60/x
  3. Step 3: Cross multiply
    8,280.10x = 12,432.30 × 4,999.60
  4. Step 4: Simplify right side
    8,280.10x = 62,156,527.08
  5. Step 5: Solve for x
    x = 62,156,527.08/8,280.10
  6. Step 6: Final answer
    x = 7,506.74

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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.