Home / 15,626.85-21,559.70-8,907.63

Finding the Fourth Proportional to 15,626.85, 21,559.70 and 8,907.63

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Solution

The fourth proportional to 15,626.85, 21,559.70 and 8,907.63 is: 12,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.85 : 21,559.70 = 8,907.63 : x
  2. Step 2: Convert to fraction form
    15,626.85/21,559.70 = 8,907.63/x
  3. Step 3: Cross multiply
    15,626.85x = 21,559.70 × 8,907.63
  4. Step 4: Simplify right side
    15,626.85x = 192,045,785.97
  5. Step 5: Solve for x
    x = 192,045,785.97/15,626.85
  6. Step 6: Final answer
    x = 12,289.48

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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.