Home / 13,113.00-18,090.19-8,862.52

Finding the Fourth Proportional to 13,113.00, 18,090.19 and 8,862.52

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Solution

The fourth proportional to 13,113.00, 18,090.19 and 8,862.52 is: 12,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.00 : 18,090.19 = 8,862.52 : x
  2. Step 2: Convert to fraction form
    13,113.00/18,090.19 = 8,862.52/x
  3. Step 3: Cross multiply
    13,113.00x = 18,090.19 × 8,862.52
  4. Step 4: Simplify right side
    13,113.00x = 160,324,636.53
  5. Step 5: Solve for x
    x = 160,324,636.53/13,113.00
  6. Step 6: Final answer
    x = 12,226.39

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Double scale
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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.