Home / 15,840.96-21,858.24-8,767.37

Finding the Fourth Proportional to 15,840.96, 21,858.24 and 8,767.37

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Solution

The fourth proportional to 15,840.96, 21,858.24 and 8,767.37 is: 12,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.96 : 21,858.24 = 8,767.37 : x
  2. Step 2: Convert to fraction form
    15,840.96/21,858.24 = 8,767.37/x
  3. Step 3: Cross multiply
    15,840.96x = 21,858.24 × 8,767.37
  4. Step 4: Simplify right side
    15,840.96x = 191,639,222.98
  5. Step 5: Solve for x
    x = 191,639,222.98/15,840.96
  6. Step 6: Final answer
    x = 12,097.70

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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.