Home / 13,746.56-20,613.12-4,980.16

Finding the Fourth Proportional to 13,746.56, 20,613.12 and 4,980.16

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Solution

The fourth proportional to 13,746.56, 20,613.12 and 4,980.16 is: 7,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.56 : 20,613.12 = 4,980.16 : x
  2. Step 2: Convert to fraction form
    13,746.56/20,613.12 = 4,980.16/x
  3. Step 3: Cross multiply
    13,746.56x = 20,613.12 × 4,980.16
  4. Step 4: Simplify right side
    13,746.56x = 102,656,635.70
  5. Step 5: Solve for x
    x = 102,656,635.70/13,746.56
  6. Step 6: Final answer
    x = 7,467.81

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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.