Home / 19,119.04-28,676.40-6,636.88

Finding the Fourth Proportional to 19,119.04, 28,676.40 and 6,636.88

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Solution

The fourth proportional to 19,119.04, 28,676.40 and 6,636.88 is: 9,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.04 : 28,676.40 = 6,636.88 : x
  2. Step 2: Convert to fraction form
    19,119.04/28,676.40 = 6,636.88/x
  3. Step 3: Cross multiply
    19,119.04x = 28,676.40 × 6,636.88
  4. Step 4: Simplify right side
    19,119.04x = 190,321,825.63
  5. Step 5: Solve for x
    x = 190,321,825.63/19,119.04
  6. Step 6: Final answer
    x = 9,954.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.