Home / 13,037.05-17,990.93-7,371.66

Finding the Fourth Proportional to 13,037.05, 17,990.93 and 7,371.66

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Solution

The fourth proportional to 13,037.05, 17,990.93 and 7,371.66 is: 10,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,037.05 : 17,990.93 = 7,371.66 : x
  2. Step 2: Convert to fraction form
    13,037.05/17,990.93 = 7,371.66/x
  3. Step 3: Cross multiply
    13,037.05x = 17,990.93 × 7,371.66
  4. Step 4: Simplify right side
    13,037.05x = 132,622,962.27
  5. Step 5: Solve for x
    x = 132,622,962.27/13,037.05
  6. Step 6: Final answer
    x = 10,172.77

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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.