Home / 19,401.12-29,112.16-7,714.48

Finding the Fourth Proportional to 19,401.12, 29,112.16 and 7,714.48

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Solution

The fourth proportional to 19,401.12, 29,112.16 and 7,714.48 is: 11,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.12 : 29,112.16 = 7,714.48 : x
  2. Step 2: Convert to fraction form
    19,401.12/29,112.16 = 7,714.48/x
  3. Step 3: Cross multiply
    19,401.12x = 29,112.16 × 7,714.48
  4. Step 4: Simplify right side
    19,401.12x = 224,585,176.08
  5. Step 5: Solve for x
    x = 224,585,176.08/19,401.12
  6. Step 6: Final answer
    x = 11,575.89

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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.