Home / 7,685.07-11,526.93-2,138.30

Finding the Fourth Proportional to 7,685.07, 11,526.93 and 2,138.30

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Solution

The fourth proportional to 7,685.07, 11,526.93 and 2,138.30 is: 3,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.07 : 11,526.93 = 2,138.30 : x
  2. Step 2: Convert to fraction form
    7,685.07/11,526.93 = 2,138.30/x
  3. Step 3: Cross multiply
    7,685.07x = 11,526.93 × 2,138.30
  4. Step 4: Simplify right side
    7,685.07x = 24,647,966.09
  5. Step 5: Solve for x
    x = 24,647,966.09/7,685.07
  6. Step 6: Final answer
    x = 3,207.25

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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.