Home / 13,291.19-18,341.86-7,241.40

Finding the Fourth Proportional to 13,291.19, 18,341.86 and 7,241.40

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Solution

The fourth proportional to 13,291.19, 18,341.86 and 7,241.40 is: 9,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.19 : 18,341.86 = 7,241.40 : x
  2. Step 2: Convert to fraction form
    13,291.19/18,341.86 = 7,241.40/x
  3. Step 3: Cross multiply
    13,291.19x = 18,341.86 × 7,241.40
  4. Step 4: Simplify right side
    13,291.19x = 132,820,745.00
  5. Step 5: Solve for x
    x = 132,820,745.00/13,291.19
  6. Step 6: Final answer
    x = 9,993.14

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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.