Home / 7,817.17-11,725.77-1,973.78

Finding the Fourth Proportional to 7,817.17, 11,725.77 and 1,973.78

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Solution

The fourth proportional to 7,817.17, 11,725.77 and 1,973.78 is: 2,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.17 : 11,725.77 = 1,973.78 : x
  2. Step 2: Convert to fraction form
    7,817.17/11,725.77 = 1,973.78/x
  3. Step 3: Cross multiply
    7,817.17x = 11,725.77 × 1,973.78
  4. Step 4: Simplify right side
    7,817.17x = 23,144,031.68
  5. Step 5: Solve for x
    x = 23,144,031.68/7,817.17
  6. Step 6: Final answer
    x = 2,960.67

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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.