Home / 15,408.54-21,263.76-8,694.16

Finding the Fourth Proportional to 15,408.54, 21,263.76 and 8,694.16

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Solution

The fourth proportional to 15,408.54, 21,263.76 and 8,694.16 is: 11,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.54 : 21,263.76 = 8,694.16 : x
  2. Step 2: Convert to fraction form
    15,408.54/21,263.76 = 8,694.16/x
  3. Step 3: Cross multiply
    15,408.54x = 21,263.76 × 8,694.16
  4. Step 4: Simplify right side
    15,408.54x = 184,870,478.48
  5. Step 5: Solve for x
    x = 184,870,478.48/15,408.54
  6. Step 6: Final answer
    x = 11,997.92

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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.