Home / 13,102.26-18,078.12-7,435.62

Finding the Fourth Proportional to 13,102.26, 18,078.12 and 7,435.62

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Solution

The fourth proportional to 13,102.26, 18,078.12 and 7,435.62 is: 10,259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.26 : 18,078.12 = 7,435.62 : x
  2. Step 2: Convert to fraction form
    13,102.26/18,078.12 = 7,435.62/x
  3. Step 3: Cross multiply
    13,102.26x = 18,078.12 × 7,435.62
  4. Step 4: Simplify right side
    13,102.26x = 134,422,030.63
  5. Step 5: Solve for x
    x = 134,422,030.63/13,102.26
  6. Step 6: Final answer
    x = 10,259.45

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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.