Home / 14,172.77-21,257.79-4,312.14

Finding the Fourth Proportional to 14,172.77, 21,257.79 and 4,312.14

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Solution

The fourth proportional to 14,172.77, 21,257.79 and 4,312.14 is: 6,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.77 : 21,257.79 = 4,312.14 : x
  2. Step 2: Convert to fraction form
    14,172.77/21,257.79 = 4,312.14/x
  3. Step 3: Cross multiply
    14,172.77x = 21,257.79 × 4,312.14
  4. Step 4: Simplify right side
    14,172.77x = 91,666,494.94
  5. Step 5: Solve for x
    x = 91,666,494.94/14,172.77
  6. Step 6: Final answer
    x = 6,467.79

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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.