Home / 14,075.88-21,113.78-4,215.16

Finding the Fourth Proportional to 14,075.88, 21,113.78 and 4,215.16

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Solution

The fourth proportional to 14,075.88, 21,113.78 and 4,215.16 is: 6,322.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.88 : 21,113.78 = 4,215.16 : x
  2. Step 2: Convert to fraction form
    14,075.88/21,113.78 = 4,215.16/x
  3. Step 3: Cross multiply
    14,075.88x = 21,113.78 × 4,215.16
  4. Step 4: Simplify right side
    14,075.88x = 88,997,960.90
  5. Step 5: Solve for x
    x = 88,997,960.90/14,075.88
  6. Step 6: Final answer
    x = 6,322.73

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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.