Home / 13,202.12-18,216.61-7,534.28

Finding the Fourth Proportional to 13,202.12, 18,216.61 and 7,534.28

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Solution

The fourth proportional to 13,202.12, 18,216.61 and 7,534.28 is: 10,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.12 : 18,216.61 = 7,534.28 : x
  2. Step 2: Convert to fraction form
    13,202.12/18,216.61 = 7,534.28/x
  3. Step 3: Cross multiply
    13,202.12x = 18,216.61 × 7,534.28
  4. Step 4: Simplify right side
    13,202.12x = 137,249,040.39
  5. Step 5: Solve for x
    x = 137,249,040.39/13,202.12
  6. Step 6: Final answer
    x = 10,395.98

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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.