Home / 15,840.84-21,861.04-8,767.26

Finding the Fourth Proportional to 15,840.84, 21,861.04 and 8,767.26

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Solution

The fourth proportional to 15,840.84, 21,861.04 and 8,767.26 is: 12,099.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.84 : 21,861.04 = 8,767.26 : x
  2. Step 2: Convert to fraction form
    15,840.84/21,861.04 = 8,767.26/x
  3. Step 3: Cross multiply
    15,840.84x = 21,861.04 × 8,767.26
  4. Step 4: Simplify right side
    15,840.84x = 191,661,399.63
  5. Step 5: Solve for x
    x = 191,661,399.63/15,840.84
  6. Step 6: Final answer
    x = 12,099.19

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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.