Home / 13,251-18,285.66-7,944.84

Finding the Fourth Proportional to 13,251, 18,285.66 and 7,944.84

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Solution

The fourth proportional to 13,251, 18,285.66 and 7,944.84 is: 10,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251 : 18,285.66 = 7,944.84 : x
  2. Step 2: Convert to fraction form
    13,251/18,285.66 = 7,944.84/x
  3. Step 3: Cross multiply
    13,251x = 18,285.66 × 7,944.84
  4. Step 4: Simplify right side
    13,251x = 145,276,642.99
  5. Step 5: Solve for x
    x = 145,276,642.99/13,251
  6. Step 6: Final answer
    x = 10,963.45

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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.