Home / 9,364.32-12,922.80-5,172.60

Finding the Fourth Proportional to 9,364.32, 12,922.80 and 5,172.60

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Solution

The fourth proportional to 9,364.32, 12,922.80 and 5,172.60 is: 7,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.32 : 12,922.80 = 5,172.60 : x
  2. Step 2: Convert to fraction form
    9,364.32/12,922.80 = 5,172.60/x
  3. Step 3: Cross multiply
    9,364.32x = 12,922.80 × 5,172.60
  4. Step 4: Simplify right side
    9,364.32x = 66,844,475.28
  5. Step 5: Solve for x
    x = 66,844,475.28/9,364.32
  6. Step 6: Final answer
    x = 7,138.21

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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.