Home / 13,205.01-18,222.43-7,236.75

Finding the Fourth Proportional to 13,205.01, 18,222.43 and 7,236.75

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Solution

The fourth proportional to 13,205.01, 18,222.43 and 7,236.75 is: 9,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.01 : 18,222.43 = 7,236.75 : x
  2. Step 2: Convert to fraction form
    13,205.01/18,222.43 = 7,236.75/x
  3. Step 3: Cross multiply
    13,205.01x = 18,222.43 × 7,236.75
  4. Step 4: Simplify right side
    13,205.01x = 131,871,170.30
  5. Step 5: Solve for x
    x = 131,871,170.30/13,205.01
  6. Step 6: Final answer
    x = 9,986.45

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Half scale
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Double scale
Find fourth proportional to 13,206.01, 18,223.81 and 7,237.75
Similar ratio
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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.