Home / 13,763.75-20,630.93-5,440.16

Finding the Fourth Proportional to 13,763.75, 20,630.93 and 5,440.16

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Solution

The fourth proportional to 13,763.75, 20,630.93 and 5,440.16 is: 8,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.75 : 20,630.93 = 5,440.16 : x
  2. Step 2: Convert to fraction form
    13,763.75/20,630.93 = 5,440.16/x
  3. Step 3: Cross multiply
    13,763.75x = 20,630.93 × 5,440.16
  4. Step 4: Simplify right side
    13,763.75x = 112,235,599.83
  5. Step 5: Solve for x
    x = 112,235,599.83/13,763.75
  6. Step 6: Final answer
    x = 8,154.44

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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.