Home / 8,723.36-12,038.73-4,945.12

Finding the Fourth Proportional to 8,723.36, 12,038.73 and 4,945.12

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Solution

The fourth proportional to 8,723.36, 12,038.73 and 4,945.12 is: 6,824.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.36 : 12,038.73 = 4,945.12 : x
  2. Step 2: Convert to fraction form
    8,723.36/12,038.73 = 4,945.12/x
  3. Step 3: Cross multiply
    8,723.36x = 12,038.73 × 4,945.12
  4. Step 4: Simplify right side
    8,723.36x = 59,532,915.86
  5. Step 5: Solve for x
    x = 59,532,915.86/8,723.36
  6. Step 6: Final answer
    x = 6,824.54

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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.