Home / 13,466.20-18,583.18-7,801.72

Finding the Fourth Proportional to 13,466.20, 18,583.18 and 7,801.72

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Solution

The fourth proportional to 13,466.20, 18,583.18 and 7,801.72 is: 10,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.20 : 18,583.18 = 7,801.72 : x
  2. Step 2: Convert to fraction form
    13,466.20/18,583.18 = 7,801.72/x
  3. Step 3: Cross multiply
    13,466.20x = 18,583.18 × 7,801.72
  4. Step 4: Simplify right side
    13,466.20x = 144,980,767.07
  5. Step 5: Solve for x
    x = 144,980,767.07/13,466.20
  6. Step 6: Final answer
    x = 10,766.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.