Home / 13,340.37-18,407.13-8,035.53

Finding the Fourth Proportional to 13,340.37, 18,407.13 and 8,035.53

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Solution

The fourth proportional to 13,340.37, 18,407.13 and 8,035.53 is: 11,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.37 : 18,407.13 = 8,035.53 : x
  2. Step 2: Convert to fraction form
    13,340.37/18,407.13 = 8,035.53/x
  3. Step 3: Cross multiply
    13,340.37x = 18,407.13 × 8,035.53
  4. Step 4: Simplify right side
    13,340.37x = 147,911,045.33
  5. Step 5: Solve for x
    x = 147,911,045.33/13,340.37
  6. Step 6: Final answer
    x = 11,087.48

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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.