Home / 13,293.40-18,345.70-7,325.06

Finding the Fourth Proportional to 13,293.40, 18,345.70 and 7,325.06

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Solution

The fourth proportional to 13,293.40, 18,345.70 and 7,325.06 is: 10,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.40 : 18,345.70 = 7,325.06 : x
  2. Step 2: Convert to fraction form
    13,293.40/18,345.70 = 7,325.06/x
  3. Step 3: Cross multiply
    13,293.40x = 18,345.70 × 7,325.06
  4. Step 4: Simplify right side
    13,293.40x = 134,383,380.79
  5. Step 5: Solve for x
    x = 134,383,380.79/13,293.40
  6. Step 6: Final answer
    x = 10,109.03

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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.