Home / 10,195.13-14,070.35-5,720.09

Finding the Fourth Proportional to 10,195.13, 14,070.35 and 5,720.09

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Solution

The fourth proportional to 10,195.13, 14,070.35 and 5,720.09 is: 7,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.13 : 14,070.35 = 5,720.09 : x
  2. Step 2: Convert to fraction form
    10,195.13/14,070.35 = 5,720.09/x
  3. Step 3: Cross multiply
    10,195.13x = 14,070.35 × 5,720.09
  4. Step 4: Simplify right side
    10,195.13x = 80,483,639.73
  5. Step 5: Solve for x
    x = 80,483,639.73/10,195.13
  6. Step 6: Final answer
    x = 7,894.32

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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.