Home / 15,463.44-21,342.72-8,749.32

Finding the Fourth Proportional to 15,463.44, 21,342.72 and 8,749.32

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Solution

The fourth proportional to 15,463.44, 21,342.72 and 8,749.32 is: 12,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,463.44 : 21,342.72 = 8,749.32 : x
  2. Step 2: Convert to fraction form
    15,463.44/21,342.72 = 8,749.32/x
  3. Step 3: Cross multiply
    15,463.44x = 21,342.72 × 8,749.32
  4. Step 4: Simplify right side
    15,463.44x = 186,734,286.95
  5. Step 5: Solve for x
    x = 186,734,286.95/15,463.44
  6. Step 6: Final answer
    x = 12,075.86

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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.