Home / 6,973.40-9,620.93-3,987.12

Finding the Fourth Proportional to 6,973.40, 9,620.93 and 3,987.12

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Solution

The fourth proportional to 6,973.40, 9,620.93 and 3,987.12 is: 5,500.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,973.40 : 9,620.93 = 3,987.12 : x
  2. Step 2: Convert to fraction form
    6,973.40/9,620.93 = 3,987.12/x
  3. Step 3: Cross multiply
    6,973.40x = 9,620.93 × 3,987.12
  4. Step 4: Simplify right side
    6,973.40x = 38,359,782.49
  5. Step 5: Solve for x
    x = 38,359,782.49/6,973.40
  6. Step 6: Final answer
    x = 5,500.88

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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.