Home / 8,075.70-12,111.93-2,881.17

Finding the Fourth Proportional to 8,075.70, 12,111.93 and 2,881.17

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Solution

The fourth proportional to 8,075.70, 12,111.93 and 2,881.17 is: 4,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.70 : 12,111.93 = 2,881.17 : x
  2. Step 2: Convert to fraction form
    8,075.70/12,111.93 = 2,881.17/x
  3. Step 3: Cross multiply
    8,075.70x = 12,111.93 × 2,881.17
  4. Step 4: Simplify right side
    8,075.70x = 34,896,529.36
  5. Step 5: Solve for x
    x = 34,896,529.36/8,075.70
  6. Step 6: Final answer
    x = 4,321.18

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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.