Home / 8,280.45-12,421.35-2,357.33

Finding the Fourth Proportional to 8,280.45, 12,421.35 and 2,357.33

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Solution

The fourth proportional to 8,280.45, 12,421.35 and 2,357.33 is: 3,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.45 : 12,421.35 = 2,357.33 : x
  2. Step 2: Convert to fraction form
    8,280.45/12,421.35 = 2,357.33/x
  3. Step 3: Cross multiply
    8,280.45x = 12,421.35 × 2,357.33
  4. Step 4: Simplify right side
    8,280.45x = 29,281,158.89
  5. Step 5: Solve for x
    x = 29,281,158.89/8,280.45
  6. Step 6: Final answer
    x = 3,536.18

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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.