Home / 13,453.56-18,567.12-7,485.12

Finding the Fourth Proportional to 13,453.56, 18,567.12 and 7,485.12

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Solution

The fourth proportional to 13,453.56, 18,567.12 and 7,485.12 is: 10,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.56 : 18,567.12 = 7,485.12 : x
  2. Step 2: Convert to fraction form
    13,453.56/18,567.12 = 7,485.12/x
  3. Step 3: Cross multiply
    13,453.56x = 18,567.12 × 7,485.12
  4. Step 4: Simplify right side
    13,453.56x = 138,977,121.25
  5. Step 5: Solve for x
    x = 138,977,121.25/13,453.56
  6. Step 6: Final answer
    x = 10,330.14

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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.