Home / 10,289.44-15,364.32-8,185.92

Finding the Fourth Proportional to 10,289.44, 15,364.32 and 8,185.92

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Solution

The fourth proportional to 10,289.44, 15,364.32 and 8,185.92 is: 12,223.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.44 : 15,364.32 = 8,185.92 : x
  2. Step 2: Convert to fraction form
    10,289.44/15,364.32 = 8,185.92/x
  3. Step 3: Cross multiply
    10,289.44x = 15,364.32 × 8,185.92
  4. Step 4: Simplify right side
    10,289.44x = 125,771,094.37
  5. Step 5: Solve for x
    x = 125,771,094.37/10,289.44
  6. Step 6: Final answer
    x = 12,223.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.