Home / 8,951.93-12,351.67-5,415.07

Finding the Fourth Proportional to 8,951.93, 12,351.67 and 5,415.07

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Solution

The fourth proportional to 8,951.93, 12,351.67 and 5,415.07 is: 7,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.93 : 12,351.67 = 5,415.07 : x
  2. Step 2: Convert to fraction form
    8,951.93/12,351.67 = 5,415.07/x
  3. Step 3: Cross multiply
    8,951.93x = 12,351.67 × 5,415.07
  4. Step 4: Simplify right side
    8,951.93x = 66,885,157.67
  5. Step 5: Solve for x
    x = 66,885,157.67/8,951.93
  6. Step 6: Final answer
    x = 7,471.59

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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.