Home / 14,148.48-19,524.79-7,688.06

Finding the Fourth Proportional to 14,148.48, 19,524.79 and 7,688.06

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Solution

The fourth proportional to 14,148.48, 19,524.79 and 7,688.06 is: 10,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.48 : 19,524.79 = 7,688.06 : x
  2. Step 2: Convert to fraction form
    14,148.48/19,524.79 = 7,688.06/x
  3. Step 3: Cross multiply
    14,148.48x = 19,524.79 × 7,688.06
  4. Step 4: Simplify right side
    14,148.48x = 150,107,698.97
  5. Step 5: Solve for x
    x = 150,107,698.97/14,148.48
  6. Step 6: Final answer
    x = 10,609.46

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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.