Home / 9,914.58-13,682.85-5,665.55

Finding the Fourth Proportional to 9,914.58, 13,682.85 and 5,665.55

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Solution

The fourth proportional to 9,914.58, 13,682.85 and 5,665.55 is: 7,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,914.58 : 13,682.85 = 5,665.55 : x
  2. Step 2: Convert to fraction form
    9,914.58/13,682.85 = 5,665.55/x
  3. Step 3: Cross multiply
    9,914.58x = 13,682.85 × 5,665.55
  4. Step 4: Simplify right side
    9,914.58x = 77,520,774.08
  5. Step 5: Solve for x
    x = 77,520,774.08/9,914.58
  6. Step 6: Final answer
    x = 7,818.87

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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.