Home / 8,926.80-12,318-4,947.84

Finding the Fourth Proportional to 8,926.80, 12,318 and 4,947.84

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Solution

The fourth proportional to 8,926.80, 12,318 and 4,947.84 is: 6,827.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.80 : 12,318 = 4,947.84 : x
  2. Step 2: Convert to fraction form
    8,926.80/12,318 = 4,947.84/x
  3. Step 3: Cross multiply
    8,926.80x = 12,318 × 4,947.84
  4. Step 4: Simplify right side
    8,926.80x = 60,947,493.12
  5. Step 5: Solve for x
    x = 60,947,493.12/8,926.80
  6. Step 6: Final answer
    x = 6,827.47

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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.