Home / 8,947.89-12,347.85-4,968.90

Finding the Fourth Proportional to 8,947.89, 12,347.85 and 4,968.90

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Solution

The fourth proportional to 8,947.89, 12,347.85 and 4,968.90 is: 6,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.89 : 12,347.85 = 4,968.90 : x
  2. Step 2: Convert to fraction form
    8,947.89/12,347.85 = 4,968.90/x
  3. Step 3: Cross multiply
    8,947.89x = 12,347.85 × 4,968.90
  4. Step 4: Simplify right side
    8,947.89x = 61,355,231.87
  5. Step 5: Solve for x
    x = 61,355,231.87/8,947.89
  6. Step 6: Final answer
    x = 6,856.95

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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.