Home / 15,868.10-21,895.67-8,794.50

Finding the Fourth Proportional to 15,868.10, 21,895.67 and 8,794.50

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Solution

The fourth proportional to 15,868.10, 21,895.67 and 8,794.50 is: 12,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.10 : 21,895.67 = 8,794.50 : x
  2. Step 2: Convert to fraction form
    15,868.10/21,895.67 = 8,794.50/x
  3. Step 3: Cross multiply
    15,868.10x = 21,895.67 × 8,794.50
  4. Step 4: Simplify right side
    15,868.10x = 192,561,425.84
  5. Step 5: Solve for x
    x = 192,561,425.84/15,868.10
  6. Step 6: Final answer
    x = 12,135.13

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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.