Home / 11,276.54-15,554.84-7,448.21

Finding the Fourth Proportional to 11,276.54, 15,554.84 and 7,448.21

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Solution

The fourth proportional to 11,276.54, 15,554.84 and 7,448.21 is: 10,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.54 : 15,554.84 = 7,448.21 : x
  2. Step 2: Convert to fraction form
    11,276.54/15,554.84 = 7,448.21/x
  3. Step 3: Cross multiply
    11,276.54x = 15,554.84 × 7,448.21
  4. Step 4: Simplify right side
    11,276.54x = 115,855,599.82
  5. Step 5: Solve for x
    x = 115,855,599.82/11,276.54
  6. Step 6: Final answer
    x = 10,274.04

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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.