Home / 13,226.65-18,251.79-7,257.35

Finding the Fourth Proportional to 13,226.65, 18,251.79 and 7,257.35

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Solution

The fourth proportional to 13,226.65, 18,251.79 and 7,257.35 is: 10,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.65 : 18,251.79 = 7,257.35 : x
  2. Step 2: Convert to fraction form
    13,226.65/18,251.79 = 7,257.35/x
  3. Step 3: Cross multiply
    13,226.65x = 18,251.79 × 7,257.35
  4. Step 4: Simplify right side
    13,226.65x = 132,459,628.16
  5. Step 5: Solve for x
    x = 132,459,628.16/13,226.65
  6. Step 6: Final answer
    x = 10,014.60

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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.