Home / 16,145.39-22,279.93-9,431.64

Finding the Fourth Proportional to 16,145.39, 22,279.93 and 9,431.64

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Solution

The fourth proportional to 16,145.39, 22,279.93 and 9,431.64 is: 13,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,145.39 : 22,279.93 = 9,431.64 : x
  2. Step 2: Convert to fraction form
    16,145.39/22,279.93 = 9,431.64/x
  3. Step 3: Cross multiply
    16,145.39x = 22,279.93 × 9,431.64
  4. Step 4: Simplify right side
    16,145.39x = 210,136,255.41
  5. Step 5: Solve for x
    x = 210,136,255.41/16,145.39
  6. Step 6: Final answer
    x = 13,015.25

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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.