Home / 10,195.40-14,070.21-5,720.57

Finding the Fourth Proportional to 10,195.40, 14,070.21 and 5,720.57

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Solution

The fourth proportional to 10,195.40, 14,070.21 and 5,720.57 is: 7,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.40 : 14,070.21 = 5,720.57 : x
  2. Step 2: Convert to fraction form
    10,195.40/14,070.21 = 5,720.57/x
  3. Step 3: Cross multiply
    10,195.40x = 14,070.21 × 5,720.57
  4. Step 4: Simplify right side
    10,195.40x = 80,489,621.22
  5. Step 5: Solve for x
    x = 80,489,621.22/10,195.40
  6. Step 6: Final answer
    x = 7,894.70

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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.