Home / 14,371.40-21,430.18-12,623.56

Finding the Fourth Proportional to 14,371.40, 21,430.18 and 12,623.56

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Solution

The fourth proportional to 14,371.40, 21,430.18 and 12,623.56 is: 18,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,371.40 : 21,430.18 = 12,623.56 : x
  2. Step 2: Convert to fraction form
    14,371.40/21,430.18 = 12,623.56/x
  3. Step 3: Cross multiply
    14,371.40x = 21,430.18 × 12,623.56
  4. Step 4: Simplify right side
    14,371.40x = 270,525,163.04
  5. Step 5: Solve for x
    x = 270,525,163.04/14,371.40
  6. Step 6: Final answer
    x = 18,823.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.