Home / 7,969.16-11,953.74-2,125.79

Finding the Fourth Proportional to 7,969.16, 11,953.74 and 2,125.79

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Solution

The fourth proportional to 7,969.16, 11,953.74 and 2,125.79 is: 3,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.16 : 11,953.74 = 2,125.79 : x
  2. Step 2: Convert to fraction form
    7,969.16/11,953.74 = 2,125.79/x
  3. Step 3: Cross multiply
    7,969.16x = 11,953.74 × 2,125.79
  4. Step 4: Simplify right side
    7,969.16x = 25,411,140.95
  5. Step 5: Solve for x
    x = 25,411,140.95/7,969.16
  6. Step 6: Final answer
    x = 3,188.69

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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.