Home / 14,081.61-19,432.62-7,708.80

Finding the Fourth Proportional to 14,081.61, 19,432.62 and 7,708.80

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Solution

The fourth proportional to 14,081.61, 19,432.62 and 7,708.80 is: 10,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.61 : 19,432.62 = 7,708.80 : x
  2. Step 2: Convert to fraction form
    14,081.61/19,432.62 = 7,708.80/x
  3. Step 3: Cross multiply
    14,081.61x = 19,432.62 × 7,708.80
  4. Step 4: Simplify right side
    14,081.61x = 149,802,181.06
  5. Step 5: Solve for x
    x = 149,802,181.06/14,081.61
  6. Step 6: Final answer
    x = 10,638.14

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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.