Home / 8,266.12-12,397.58-2,421.40

Finding the Fourth Proportional to 8,266.12, 12,397.58 and 2,421.40

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Solution

The fourth proportional to 8,266.12, 12,397.58 and 2,421.40 is: 3,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.12 : 12,397.58 = 2,421.40 : x
  2. Step 2: Convert to fraction form
    8,266.12/12,397.58 = 2,421.40/x
  3. Step 3: Cross multiply
    8,266.12x = 12,397.58 × 2,421.40
  4. Step 4: Simplify right side
    8,266.12x = 30,019,500.21
  5. Step 5: Solve for x
    x = 30,019,500.21/8,266.12
  6. Step 6: Final answer
    x = 3,631.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.