Home / 14,391.88-19,862.21-8,423.19

Finding the Fourth Proportional to 14,391.88, 19,862.21 and 8,423.19

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Solution

The fourth proportional to 14,391.88, 19,862.21 and 8,423.19 is: 11,624.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.88 : 19,862.21 = 8,423.19 : x
  2. Step 2: Convert to fraction form
    14,391.88/19,862.21 = 8,423.19/x
  3. Step 3: Cross multiply
    14,391.88x = 19,862.21 × 8,423.19
  4. Step 4: Simplify right side
    14,391.88x = 167,303,189.71
  5. Step 5: Solve for x
    x = 167,303,189.71/14,391.88
  6. Step 6: Final answer
    x = 11,624.83

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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.