Home / 13,484.05-18,608.01-7,515.60

Finding the Fourth Proportional to 13,484.05, 18,608.01 and 7,515.60

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Solution

The fourth proportional to 13,484.05, 18,608.01 and 7,515.60 is: 10,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.05 : 18,608.01 = 7,515.60 : x
  2. Step 2: Convert to fraction form
    13,484.05/18,608.01 = 7,515.60/x
  3. Step 3: Cross multiply
    13,484.05x = 18,608.01 × 7,515.60
  4. Step 4: Simplify right side
    13,484.05x = 139,850,318.36
  5. Step 5: Solve for x
    x = 139,850,318.36/13,484.05
  6. Step 6: Final answer
    x = 10,371.54

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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.