Home / 8,735.40-12,055.68-5,380.18

Finding the Fourth Proportional to 8,735.40, 12,055.68 and 5,380.18

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Solution

The fourth proportional to 8,735.40, 12,055.68 and 5,380.18 is: 7,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.40 : 12,055.68 = 5,380.18 : x
  2. Step 2: Convert to fraction form
    8,735.40/12,055.68 = 5,380.18/x
  3. Step 3: Cross multiply
    8,735.40x = 12,055.68 × 5,380.18
  4. Step 4: Simplify right side
    8,735.40x = 64,861,698.28
  5. Step 5: Solve for x
    x = 64,861,698.28/8,735.40
  6. Step 6: Final answer
    x = 7,425.15

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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.