Home / 14,075.61-21,120.71-10,211.91

Finding the Fourth Proportional to 14,075.61, 21,120.71 and 10,211.91

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Solution

The fourth proportional to 14,075.61, 21,120.71 and 10,211.91 is: 15,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.61 : 21,120.71 = 10,211.91 : x
  2. Step 2: Convert to fraction form
    14,075.61/21,120.71 = 10,211.91/x
  3. Step 3: Cross multiply
    14,075.61x = 21,120.71 × 10,211.91
  4. Step 4: Simplify right side
    14,075.61x = 215,682,738.60
  5. Step 5: Solve for x
    x = 215,682,738.60/14,075.61
  6. Step 6: Final answer
    x = 15,323.15

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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.