Home / 7,685.18-11,526.48-2,137.76

Finding the Fourth Proportional to 7,685.18, 11,526.48 and 2,137.76

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Solution

The fourth proportional to 7,685.18, 11,526.48 and 2,137.76 is: 3,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.18 : 11,526.48 = 2,137.76 : x
  2. Step 2: Convert to fraction form
    7,685.18/11,526.48 = 2,137.76/x
  3. Step 3: Cross multiply
    7,685.18x = 11,526.48 × 2,137.76
  4. Step 4: Simplify right side
    7,685.18x = 24,640,790.25
  5. Step 5: Solve for x
    x = 24,640,790.25/7,685.18
  6. Step 6: Final answer
    x = 3,206.28

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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.