Home / 13,276.65-18,321.78-7,226.87

Finding the Fourth Proportional to 13,276.65, 18,321.78 and 7,226.87

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Solution

The fourth proportional to 13,276.65, 18,321.78 and 7,226.87 is: 9,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.65 : 18,321.78 = 7,226.87 : x
  2. Step 2: Convert to fraction form
    13,276.65/18,321.78 = 7,226.87/x
  3. Step 3: Cross multiply
    13,276.65x = 18,321.78 × 7,226.87
  4. Step 4: Simplify right side
    13,276.65x = 132,409,030.62
  5. Step 5: Solve for x
    x = 132,409,030.62/13,276.65
  6. Step 6: Final answer
    x = 9,973.08

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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.