Home / 8,271.99-12,395.84-6,521.18

Finding the Fourth Proportional to 8,271.99, 12,395.84 and 6,521.18

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Solution

The fourth proportional to 8,271.99, 12,395.84 and 6,521.18 is: 9,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.99 : 12,395.84 = 6,521.18 : x
  2. Step 2: Convert to fraction form
    8,271.99/12,395.84 = 6,521.18/x
  3. Step 3: Cross multiply
    8,271.99x = 12,395.84 × 6,521.18
  4. Step 4: Simplify right side
    8,271.99x = 80,835,409.31
  5. Step 5: Solve for x
    x = 80,835,409.31/8,271.99
  6. Step 6: Final answer
    x = 9,772.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.