Home / 15,664.54-21,605.91-10,366.54

Finding the Fourth Proportional to 15,664.54, 21,605.91 and 10,366.54

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Solution

The fourth proportional to 15,664.54, 21,605.91 and 10,366.54 is: 14,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664.54 : 21,605.91 = 10,366.54 : x
  2. Step 2: Convert to fraction form
    15,664.54/21,605.91 = 10,366.54/x
  3. Step 3: Cross multiply
    15,664.54x = 21,605.91 × 10,366.54
  4. Step 4: Simplify right side
    15,664.54x = 223,978,530.25
  5. Step 5: Solve for x
    x = 223,978,530.25/15,664.54
  6. Step 6: Final answer
    x = 14,298.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.