Home / 13,150.23-18,146.88-7,842.30

Finding the Fourth Proportional to 13,150.23, 18,146.88 and 7,842.30

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Solution

The fourth proportional to 13,150.23, 18,146.88 and 7,842.30 is: 10,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.23 : 18,146.88 = 7,842.30 : x
  2. Step 2: Convert to fraction form
    13,150.23/18,146.88 = 7,842.30/x
  3. Step 3: Cross multiply
    13,150.23x = 18,146.88 × 7,842.30
  4. Step 4: Simplify right side
    13,150.23x = 142,313,277.02
  5. Step 5: Solve for x
    x = 142,313,277.02/13,150.23
  6. Step 6: Final answer
    x = 10,822.11

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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.