Home / 14,075.85-21,113.82-4,215.18

Finding the Fourth Proportional to 14,075.85, 21,113.82 and 4,215.18

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Solution

The fourth proportional to 14,075.85, 21,113.82 and 4,215.18 is: 6,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.85 : 21,113.82 = 4,215.18 : x
  2. Step 2: Convert to fraction form
    14,075.85/21,113.82 = 4,215.18/x
  3. Step 3: Cross multiply
    14,075.85x = 21,113.82 × 4,215.18
  4. Step 4: Simplify right side
    14,075.85x = 88,998,551.79
  5. Step 5: Solve for x
    x = 88,998,551.79/14,075.85
  6. Step 6: Final answer
    x = 6,322.78

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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.