Home / 14,074.40-21,075.88-8,448.57

Finding the Fourth Proportional to 14,074.40, 21,075.88 and 8,448.57

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Solution

The fourth proportional to 14,074.40, 21,075.88 and 8,448.57 is: 12,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,074.40 : 21,075.88 = 8,448.57 : x
  2. Step 2: Convert to fraction form
    14,074.40/21,075.88 = 8,448.57/x
  3. Step 3: Cross multiply
    14,074.40x = 21,075.88 × 8,448.57
  4. Step 4: Simplify right side
    14,074.40x = 178,060,899.87
  5. Step 5: Solve for x
    x = 178,060,899.87/14,074.40
  6. Step 6: Final answer
    x = 12,651.41

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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.