Home / 14,172.98-21,260.48-4,312.20

Finding the Fourth Proportional to 14,172.98, 21,260.48 and 4,312.20

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Solution

The fourth proportional to 14,172.98, 21,260.48 and 4,312.20 is: 6,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.98 : 21,260.48 = 4,312.20 : x
  2. Step 2: Convert to fraction form
    14,172.98/21,260.48 = 4,312.20/x
  3. Step 3: Cross multiply
    14,172.98x = 21,260.48 × 4,312.20
  4. Step 4: Simplify right side
    14,172.98x = 91,679,500.02
  5. Step 5: Solve for x
    x = 91,679,500.02/14,172.98
  6. Step 6: Final answer
    x = 6,468.61

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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.