Home / 13,480.01-18,602.22-7,511.66

Finding the Fourth Proportional to 13,480.01, 18,602.22 and 7,511.66

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Solution

The fourth proportional to 13,480.01, 18,602.22 and 7,511.66 is: 10,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.01 : 18,602.22 = 7,511.66 : x
  2. Step 2: Convert to fraction form
    13,480.01/18,602.22 = 7,511.66/x
  3. Step 3: Cross multiply
    13,480.01x = 18,602.22 × 7,511.66
  4. Step 4: Simplify right side
    13,480.01x = 139,733,551.89
  5. Step 5: Solve for x
    x = 139,733,551.89/13,480.01
  6. Step 6: Final answer
    x = 10,365.98

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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.