Home / 7,070.03-9,756.47-3,926.21

Finding the Fourth Proportional to 7,070.03, 9,756.47 and 3,926.21

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Solution

The fourth proportional to 7,070.03, 9,756.47 and 3,926.21 is: 5,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.03 : 9,756.47 = 3,926.21 : x
  2. Step 2: Convert to fraction form
    7,070.03/9,756.47 = 3,926.21/x
  3. Step 3: Cross multiply
    7,070.03x = 9,756.47 × 3,926.21
  4. Step 4: Simplify right side
    7,070.03x = 38,305,984.29
  5. Step 5: Solve for x
    x = 38,305,984.29/7,070.03
  6. Step 6: Final answer
    x = 5,418.08

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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.