Home / 13,674.08-18,870.06-7,706.36

Finding the Fourth Proportional to 13,674.08, 18,870.06 and 7,706.36

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Solution

The fourth proportional to 13,674.08, 18,870.06 and 7,706.36 is: 10,634.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.08 : 18,870.06 = 7,706.36 : x
  2. Step 2: Convert to fraction form
    13,674.08/18,870.06 = 7,706.36/x
  3. Step 3: Cross multiply
    13,674.08x = 18,870.06 × 7,706.36
  4. Step 4: Simplify right side
    13,674.08x = 145,419,475.58
  5. Step 5: Solve for x
    x = 145,419,475.58/13,674.08
  6. Step 6: Final answer
    x = 10,634.68

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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.