Home / 13,515.54-20,280.58-5,623.50

Finding the Fourth Proportional to 13,515.54, 20,280.58 and 5,623.50

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Solution

The fourth proportional to 13,515.54, 20,280.58 and 5,623.50 is: 8,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.54 : 20,280.58 = 5,623.50 : x
  2. Step 2: Convert to fraction form
    13,515.54/20,280.58 = 5,623.50/x
  3. Step 3: Cross multiply
    13,515.54x = 20,280.58 × 5,623.50
  4. Step 4: Simplify right side
    13,515.54x = 114,047,827.57
  5. Step 5: Solve for x
    x = 114,047,827.57/13,515.54
  6. Step 6: Final answer
    x = 8,438.27

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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.