Home / 13,127.17-18,130.62-9,558.09

Finding the Fourth Proportional to 13,127.17, 18,130.62 and 9,558.09

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Solution

The fourth proportional to 13,127.17, 18,130.62 and 9,558.09 is: 13,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.17 : 18,130.62 = 9,558.09 : x
  2. Step 2: Convert to fraction form
    13,127.17/18,130.62 = 9,558.09/x
  3. Step 3: Cross multiply
    13,127.17x = 18,130.62 × 9,558.09
  4. Step 4: Simplify right side
    13,127.17x = 173,293,983.17
  5. Step 5: Solve for x
    x = 173,293,983.17/13,127.17
  6. Step 6: Final answer
    x = 13,201.17

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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.