Home / 14,188.88-19,579.89-7,814.23

Finding the Fourth Proportional to 14,188.88, 19,579.89 and 7,814.23

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Solution

The fourth proportional to 14,188.88, 19,579.89 and 7,814.23 is: 10,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.88 : 19,579.89 = 7,814.23 : x
  2. Step 2: Convert to fraction form
    14,188.88/19,579.89 = 7,814.23/x
  3. Step 3: Cross multiply
    14,188.88x = 19,579.89 × 7,814.23
  4. Step 4: Simplify right side
    14,188.88x = 153,001,714.88
  5. Step 5: Solve for x
    x = 153,001,714.88/14,188.88
  6. Step 6: Final answer
    x = 10,783.21

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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.