Home / 8,947.80-12,347.78-4,968.81

Finding the Fourth Proportional to 8,947.80, 12,347.78 and 4,968.81

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Solution

The fourth proportional to 8,947.80, 12,347.78 and 4,968.81 is: 6,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.80 : 12,347.78 = 4,968.81 : x
  2. Step 2: Convert to fraction form
    8,947.80/12,347.78 = 4,968.81/x
  3. Step 3: Cross multiply
    8,947.80x = 12,347.78 × 4,968.81
  4. Step 4: Simplify right side
    8,947.80x = 61,353,747.90
  5. Step 5: Solve for x
    x = 61,353,747.90/8,947.80
  6. Step 6: Final answer
    x = 6,856.85

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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.