Home / 15,433.89-21,302.27-8,723.41

Finding the Fourth Proportional to 15,433.89, 21,302.27 and 8,723.41

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Solution

The fourth proportional to 15,433.89, 21,302.27 and 8,723.41 is: 12,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.89 : 21,302.27 = 8,723.41 : x
  2. Step 2: Convert to fraction form
    15,433.89/21,302.27 = 8,723.41/x
  3. Step 3: Cross multiply
    15,433.89x = 21,302.27 × 8,723.41
  4. Step 4: Simplify right side
    15,433.89x = 185,828,435.14
  5. Step 5: Solve for x
    x = 185,828,435.14/15,433.89
  6. Step 6: Final answer
    x = 12,040.29

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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.