Home / 8,948.95-12,361.18-6,811.50

Finding the Fourth Proportional to 8,948.95, 12,361.18 and 6,811.50

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Solution

The fourth proportional to 8,948.95, 12,361.18 and 6,811.50 is: 9,408.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.95 : 12,361.18 = 6,811.50 : x
  2. Step 2: Convert to fraction form
    8,948.95/12,361.18 = 6,811.50/x
  3. Step 3: Cross multiply
    8,948.95x = 12,361.18 × 6,811.50
  4. Step 4: Simplify right side
    8,948.95x = 84,198,177.57
  5. Step 5: Solve for x
    x = 84,198,177.57/8,948.95
  6. Step 6: Final answer
    x = 9,408.72

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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.