Home / 14,135.22-21,206.91-4,275.94

Finding the Fourth Proportional to 14,135.22, 21,206.91 and 4,275.94

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Solution

The fourth proportional to 14,135.22, 21,206.91 and 4,275.94 is: 6,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.22 : 21,206.91 = 4,275.94 : x
  2. Step 2: Convert to fraction form
    14,135.22/21,206.91 = 4,275.94/x
  3. Step 3: Cross multiply
    14,135.22x = 21,206.91 × 4,275.94
  4. Step 4: Simplify right side
    14,135.22x = 90,679,474.75
  5. Step 5: Solve for x
    x = 90,679,474.75/14,135.22
  6. Step 6: Final answer
    x = 6,415.14

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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.