Home / 13,187.05-18,201.57-9,154.18

Finding the Fourth Proportional to 13,187.05, 18,201.57 and 9,154.18

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Solution

The fourth proportional to 13,187.05, 18,201.57 and 9,154.18 is: 12,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.05 : 18,201.57 = 9,154.18 : x
  2. Step 2: Convert to fraction form
    13,187.05/18,201.57 = 9,154.18/x
  3. Step 3: Cross multiply
    13,187.05x = 18,201.57 × 9,154.18
  4. Step 4: Simplify right side
    13,187.05x = 166,620,448.06
  5. Step 5: Solve for x
    x = 166,620,448.06/13,187.05
  6. Step 6: Final answer
    x = 12,635.16

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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.