Home / 8,782.48-12,119.74-4,803.62

Finding the Fourth Proportional to 8,782.48, 12,119.74 and 4,803.62

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Solution

The fourth proportional to 8,782.48, 12,119.74 and 4,803.62 is: 6,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.48 : 12,119.74 = 4,803.62 : x
  2. Step 2: Convert to fraction form
    8,782.48/12,119.74 = 4,803.62/x
  3. Step 3: Cross multiply
    8,782.48x = 12,119.74 × 4,803.62
  4. Step 4: Simplify right side
    8,782.48x = 58,218,576.65
  5. Step 5: Solve for x
    x = 58,218,576.65/8,782.48
  6. Step 6: Final answer
    x = 6,628.95

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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.