Home / 13,823.24-20,740.02-8,280.50

Finding the Fourth Proportional to 13,823.24, 20,740.02 and 8,280.50

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Solution

The fourth proportional to 13,823.24, 20,740.02 and 8,280.50 is: 12,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.24 : 20,740.02 = 8,280.50 : x
  2. Step 2: Convert to fraction form
    13,823.24/20,740.02 = 8,280.50/x
  3. Step 3: Cross multiply
    13,823.24x = 20,740.02 × 8,280.50
  4. Step 4: Simplify right side
    13,823.24x = 171,737,735.61
  5. Step 5: Solve for x
    x = 171,737,735.61/13,823.24
  6. Step 6: Final answer
    x = 12,423.84

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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.