Home / 13,727.01-18,941.23-7,758.63

Finding the Fourth Proportional to 13,727.01, 18,941.23 and 7,758.63

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Solution

The fourth proportional to 13,727.01, 18,941.23 and 7,758.63 is: 10,705.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.01 : 18,941.23 = 7,758.63 : x
  2. Step 2: Convert to fraction form
    13,727.01/18,941.23 = 7,758.63/x
  3. Step 3: Cross multiply
    13,727.01x = 18,941.23 × 7,758.63
  4. Step 4: Simplify right side
    13,727.01x = 146,957,995.31
  5. Step 5: Solve for x
    x = 146,957,995.31/13,727.01
  6. Step 6: Final answer
    x = 10,705.75

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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.