Home / 13,724.01-18,940.10-7,756.23

Finding the Fourth Proportional to 13,724.01, 18,940.10 and 7,756.23

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Solution

The fourth proportional to 13,724.01, 18,940.10 and 7,756.23 is: 10,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.01 : 18,940.10 = 7,756.23 : x
  2. Step 2: Convert to fraction form
    13,724.01/18,940.10 = 7,756.23/x
  3. Step 3: Cross multiply
    13,724.01x = 18,940.10 × 7,756.23
  4. Step 4: Simplify right side
    13,724.01x = 146,903,733.04
  5. Step 5: Solve for x
    x = 146,903,733.04/13,724.01
  6. Step 6: Final answer
    x = 10,704.14

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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.