Home / 8,926.81-12,318.80-4,947.89

Finding the Fourth Proportional to 8,926.81, 12,318.80 and 4,947.89

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Solution

The fourth proportional to 8,926.81, 12,318.80 and 4,947.89 is: 6,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.81 : 12,318.80 = 4,947.89 : x
  2. Step 2: Convert to fraction form
    8,926.81/12,318.80 = 4,947.89/x
  3. Step 3: Cross multiply
    8,926.81x = 12,318.80 × 4,947.89
  4. Step 4: Simplify right side
    8,926.81x = 60,951,981.00
  5. Step 5: Solve for x
    x = 60,951,981.00/8,926.81
  6. Step 6: Final answer
    x = 6,827.97

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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.