Home / 13,050.30-18,009.36-7,749.48

Finding the Fourth Proportional to 13,050.30, 18,009.36 and 7,749.48

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Solution

The fourth proportional to 13,050.30, 18,009.36 and 7,749.48 is: 10,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.30 : 18,009.36 = 7,749.48 : x
  2. Step 2: Convert to fraction form
    13,050.30/18,009.36 = 7,749.48/x
  3. Step 3: Cross multiply
    13,050.30x = 18,009.36 × 7,749.48
  4. Step 4: Simplify right side
    13,050.30x = 139,563,175.13
  5. Step 5: Solve for x
    x = 139,563,175.13/13,050.30
  6. Step 6: Final answer
    x = 10,694.25

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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.