Home / 8,953.90-13,430.78-2,380.55

Finding the Fourth Proportional to 8,953.90, 13,430.78 and 2,380.55

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Solution

The fourth proportional to 8,953.90, 13,430.78 and 2,380.55 is: 3,570.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.90 : 13,430.78 = 2,380.55 : x
  2. Step 2: Convert to fraction form
    8,953.90/13,430.78 = 2,380.55/x
  3. Step 3: Cross multiply
    8,953.90x = 13,430.78 × 2,380.55
  4. Step 4: Simplify right side
    8,953.90x = 31,972,643.33
  5. Step 5: Solve for x
    x = 31,972,643.33/8,953.90
  6. Step 6: Final answer
    x = 3,570.81

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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.