Home / 8,972.83-12,376.99-5,784.94

Finding the Fourth Proportional to 8,972.83, 12,376.99 and 5,784.94

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Solution

The fourth proportional to 8,972.83, 12,376.99 and 5,784.94 is: 7,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.83 : 12,376.99 = 5,784.94 : x
  2. Step 2: Convert to fraction form
    8,972.83/12,376.99 = 5,784.94/x
  3. Step 3: Cross multiply
    8,972.83x = 12,376.99 × 5,784.94
  4. Step 4: Simplify right side
    8,972.83x = 71,600,065.07
  5. Step 5: Solve for x
    x = 71,600,065.07/8,972.83
  6. Step 6: Final answer
    x = 7,979.66

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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.