Home / 7,715.58-11,573.37-2,169.51

Finding the Fourth Proportional to 7,715.58, 11,573.37 and 2,169.51

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Solution

The fourth proportional to 7,715.58, 11,573.37 and 2,169.51 is: 3,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.58 : 11,573.37 = 2,169.51 : x
  2. Step 2: Convert to fraction form
    7,715.58/11,573.37 = 2,169.51/x
  3. Step 3: Cross multiply
    7,715.58x = 11,573.37 × 2,169.51
  4. Step 4: Simplify right side
    7,715.58x = 25,108,541.95
  5. Step 5: Solve for x
    x = 25,108,541.95/7,715.58
  6. Step 6: Final answer
    x = 3,254.27

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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.