Home / 12,928.60-17,843.79-7,623.10

Finding the Fourth Proportional to 12,928.60, 17,843.79 and 7,623.10

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Solution

The fourth proportional to 12,928.60, 17,843.79 and 7,623.10 is: 10,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.60 : 17,843.79 = 7,623.10 : x
  2. Step 2: Convert to fraction form
    12,928.60/17,843.79 = 7,623.10/x
  3. Step 3: Cross multiply
    12,928.60x = 17,843.79 × 7,623.10
  4. Step 4: Simplify right side
    12,928.60x = 136,024,995.55
  5. Step 5: Solve for x
    x = 136,024,995.55/12,928.60
  6. Step 6: Final answer
    x = 10,521.25

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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.