Home / 9,021.21-12,449.18-4,988.30

Finding the Fourth Proportional to 9,021.21, 12,449.18 and 4,988.30

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Solution

The fourth proportional to 9,021.21, 12,449.18 and 4,988.30 is: 6,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.21 : 12,449.18 = 4,988.30 : x
  2. Step 2: Convert to fraction form
    9,021.21/12,449.18 = 4,988.30/x
  3. Step 3: Cross multiply
    9,021.21x = 12,449.18 × 4,988.30
  4. Step 4: Simplify right side
    9,021.21x = 62,100,157.41
  5. Step 5: Solve for x
    x = 62,100,157.41/9,021.21
  6. Step 6: Final answer
    x = 6,883.79

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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.