Home / 15,734.36-21,671.34-11,749.16

Finding the Fourth Proportional to 15,734.36, 21,671.34 and 11,749.16

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Solution

The fourth proportional to 15,734.36, 21,671.34 and 11,749.16 is: 16,182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.36 : 21,671.34 = 11,749.16 : x
  2. Step 2: Convert to fraction form
    15,734.36/21,671.34 = 11,749.16/x
  3. Step 3: Cross multiply
    15,734.36x = 21,671.34 × 11,749.16
  4. Step 4: Simplify right side
    15,734.36x = 254,620,041.07
  5. Step 5: Solve for x
    x = 254,620,041.07/15,734.36
  6. Step 6: Final answer
    x = 16,182.42

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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.