Home / 9,878.94-13,633.20-5,902.35

Finding the Fourth Proportional to 9,878.94, 13,633.20 and 5,902.35

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Solution

The fourth proportional to 9,878.94, 13,633.20 and 5,902.35 is: 8,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.94 : 13,633.20 = 5,902.35 : x
  2. Step 2: Convert to fraction form
    9,878.94/13,633.20 = 5,902.35/x
  3. Step 3: Cross multiply
    9,878.94x = 13,633.20 × 5,902.35
  4. Step 4: Simplify right side
    9,878.94x = 80,467,918.02
  5. Step 5: Solve for x
    x = 80,467,918.02/9,878.94
  6. Step 6: Final answer
    x = 8,145.40

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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.