Home / 15,443.94-21,312.74-8,370.48

Finding the Fourth Proportional to 15,443.94, 21,312.74 and 8,370.48

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Solution

The fourth proportional to 15,443.94, 21,312.74 and 8,370.48 is: 11,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.94 : 21,312.74 = 8,370.48 : x
  2. Step 2: Convert to fraction form
    15,443.94/21,312.74 = 8,370.48/x
  3. Step 3: Cross multiply
    15,443.94x = 21,312.74 × 8,370.48
  4. Step 4: Simplify right side
    15,443.94x = 178,397,884.84
  5. Step 5: Solve for x
    x = 178,397,884.84/15,443.94
  6. Step 6: Final answer
    x = 11,551.32

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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.