Home / 13,485.08-18,609.67-7,516.12

Finding the Fourth Proportional to 13,485.08, 18,609.67 and 7,516.12

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Solution

The fourth proportional to 13,485.08, 18,609.67 and 7,516.12 is: 10,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.08 : 18,609.67 = 7,516.12 : x
  2. Step 2: Convert to fraction form
    13,485.08/18,609.67 = 7,516.12/x
  3. Step 3: Cross multiply
    13,485.08x = 18,609.67 × 7,516.12
  4. Step 4: Simplify right side
    13,485.08x = 139,872,416.03
  5. Step 5: Solve for x
    x = 139,872,416.03/13,485.08
  6. Step 6: Final answer
    x = 10,372.38

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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.