Home / 14,280.70-21,427.17-5,521.75

Finding the Fourth Proportional to 14,280.70, 21,427.17 and 5,521.75

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Solution

The fourth proportional to 14,280.70, 21,427.17 and 5,521.75 is: 8,284.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.70 : 21,427.17 = 5,521.75 : x
  2. Step 2: Convert to fraction form
    14,280.70/21,427.17 = 5,521.75/x
  3. Step 3: Cross multiply
    14,280.70x = 21,427.17 × 5,521.75
  4. Step 4: Simplify right side
    14,280.70x = 118,315,475.95
  5. Step 5: Solve for x
    x = 118,315,475.95/14,280.70
  6. Step 6: Final answer
    x = 8,284.99

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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.