Home / 13,150.96-18,148.52-7,486.64

Finding the Fourth Proportional to 13,150.96, 18,148.52 and 7,486.64

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Solution

The fourth proportional to 13,150.96, 18,148.52 and 7,486.64 is: 10,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.96 : 18,148.52 = 7,486.64 : x
  2. Step 2: Convert to fraction form
    13,150.96/18,148.52 = 7,486.64/x
  3. Step 3: Cross multiply
    13,150.96x = 18,148.52 × 7,486.64
  4. Step 4: Simplify right side
    13,150.96x = 135,871,435.77
  5. Step 5: Solve for x
    x = 135,871,435.77/13,150.96
  6. Step 6: Final answer
    x = 10,331.67

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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.