Home / 14,284.01-21,420.99-4,285.77

Finding the Fourth Proportional to 14,284.01, 21,420.99 and 4,285.77

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Solution

The fourth proportional to 14,284.01, 21,420.99 and 4,285.77 is: 6,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.01 : 21,420.99 = 4,285.77 : x
  2. Step 2: Convert to fraction form
    14,284.01/21,420.99 = 4,285.77/x
  3. Step 3: Cross multiply
    14,284.01x = 21,420.99 × 4,285.77
  4. Step 4: Simplify right side
    14,284.01x = 91,805,436.31
  5. Step 5: Solve for x
    x = 91,805,436.31/14,284.01
  6. Step 6: Final answer
    x = 6,427.15

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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.