Home / 8,370.41-12,555.72-3,438.95

Finding the Fourth Proportional to 8,370.41, 12,555.72 and 3,438.95

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Solution

The fourth proportional to 8,370.41, 12,555.72 and 3,438.95 is: 5,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.41 : 12,555.72 = 3,438.95 : x
  2. Step 2: Convert to fraction form
    8,370.41/12,555.72 = 3,438.95/x
  3. Step 3: Cross multiply
    8,370.41x = 12,555.72 × 3,438.95
  4. Step 4: Simplify right side
    8,370.41x = 43,178,430.52
  5. Step 5: Solve for x
    x = 43,178,430.52/8,370.41
  6. Step 6: Final answer
    x = 5,158.46

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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.