Home / 9,009.40-13,520.60-3,170.92

Finding the Fourth Proportional to 9,009.40, 13,520.60 and 3,170.92

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Solution

The fourth proportional to 9,009.40, 13,520.60 and 3,170.92 is: 4,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.40 : 13,520.60 = 3,170.92 : x
  2. Step 2: Convert to fraction form
    9,009.40/13,520.60 = 3,170.92/x
  3. Step 3: Cross multiply
    9,009.40x = 13,520.60 × 3,170.92
  4. Step 4: Simplify right side
    9,009.40x = 42,872,740.95
  5. Step 5: Solve for x
    x = 42,872,740.95/9,009.40
  6. Step 6: Final answer
    x = 4,758.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.