Home / 8,280.71-12,421.07-2,435.95

Finding the Fourth Proportional to 8,280.71, 12,421.07 and 2,435.95

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Solution

The fourth proportional to 8,280.71, 12,421.07 and 2,435.95 is: 3,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.71 : 12,421.07 = 2,435.95 : x
  2. Step 2: Convert to fraction form
    8,280.71/12,421.07 = 2,435.95/x
  3. Step 3: Cross multiply
    8,280.71x = 12,421.07 × 2,435.95
  4. Step 4: Simplify right side
    8,280.71x = 30,257,108.81
  5. Step 5: Solve for x
    x = 30,257,108.81/8,280.71
  6. Step 6: Final answer
    x = 3,653.93

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Similar ratio
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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.