Home / 13,201.02-18,217.62-7,898.94

Finding the Fourth Proportional to 13,201.02, 18,217.62 and 7,898.94

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Solution

The fourth proportional to 13,201.02, 18,217.62 and 7,898.94 is: 10,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.02 : 18,217.62 = 7,898.94 : x
  2. Step 2: Convert to fraction form
    13,201.02/18,217.62 = 7,898.94/x
  3. Step 3: Cross multiply
    13,201.02x = 18,217.62 × 7,898.94
  4. Step 4: Simplify right side
    13,201.02x = 143,899,887.32
  5. Step 5: Solve for x
    x = 143,899,887.32/13,201.02
  6. Step 6: Final answer
    x = 10,900.66

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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.