Home / 9,273.12-12,789.93-6,440.50

Finding the Fourth Proportional to 9,273.12, 12,789.93 and 6,440.50

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Solution

The fourth proportional to 9,273.12, 12,789.93 and 6,440.50 is: 8,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,273.12 : 12,789.93 = 6,440.50 : x
  2. Step 2: Convert to fraction form
    9,273.12/12,789.93 = 6,440.50/x
  3. Step 3: Cross multiply
    9,273.12x = 12,789.93 × 6,440.50
  4. Step 4: Simplify right side
    9,273.12x = 82,373,479.99
  5. Step 5: Solve for x
    x = 82,373,479.99/9,273.12
  6. Step 6: Final answer
    x = 8,883.04

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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.