Home / 13,047.25-18,005.21-7,458.37

Finding the Fourth Proportional to 13,047.25, 18,005.21 and 7,458.37

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Solution

The fourth proportional to 13,047.25, 18,005.21 and 7,458.37 is: 10,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.25 : 18,005.21 = 7,458.37 : x
  2. Step 2: Convert to fraction form
    13,047.25/18,005.21 = 7,458.37/x
  3. Step 3: Cross multiply
    13,047.25x = 18,005.21 × 7,458.37
  4. Step 4: Simplify right side
    13,047.25x = 134,289,518.11
  5. Step 5: Solve for x
    x = 134,289,518.11/13,047.25
  6. Step 6: Final answer
    x = 10,292.55

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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.