Home / 9,112.60-13,651.88-5,205.16

Finding the Fourth Proportional to 9,112.60, 13,651.88 and 5,205.16

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Solution

The fourth proportional to 9,112.60, 13,651.88 and 5,205.16 is: 7,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.60 : 13,651.88 = 5,205.16 : x
  2. Step 2: Convert to fraction form
    9,112.60/13,651.88 = 5,205.16/x
  3. Step 3: Cross multiply
    9,112.60x = 13,651.88 × 5,205.16
  4. Step 4: Simplify right side
    9,112.60x = 71,060,219.70
  5. Step 5: Solve for x
    x = 71,060,219.70/9,112.60
  6. Step 6: Final answer
    x = 7,798.02

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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.