Home / 14,072.50-21,087.85-7,823.91

Finding the Fourth Proportional to 14,072.50, 21,087.85 and 7,823.91

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Solution

The fourth proportional to 14,072.50, 21,087.85 and 7,823.91 is: 11,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.50 : 21,087.85 = 7,823.91 : x
  2. Step 2: Convert to fraction form
    14,072.50/21,087.85 = 7,823.91/x
  3. Step 3: Cross multiply
    14,072.50x = 21,087.85 × 7,823.91
  4. Step 4: Simplify right side
    14,072.50x = 164,989,440.49
  5. Step 5: Solve for x
    x = 164,989,440.49/14,072.50
  6. Step 6: Final answer
    x = 11,724.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.