Home / 10,195.94-14,070.20-5,720.79

Finding the Fourth Proportional to 10,195.94, 14,070.20 and 5,720.79

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Solution

The fourth proportional to 10,195.94, 14,070.20 and 5,720.79 is: 7,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.94 : 14,070.20 = 5,720.79 : x
  2. Step 2: Convert to fraction form
    10,195.94/14,070.20 = 5,720.79/x
  3. Step 3: Cross multiply
    10,195.94x = 14,070.20 × 5,720.79
  4. Step 4: Simplify right side
    10,195.94x = 80,492,630.85
  5. Step 5: Solve for x
    x = 80,492,630.85/10,195.94
  6. Step 6: Final answer
    x = 7,894.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.