Home / 14,195.63-21,271.54-8,990.57

Finding the Fourth Proportional to 14,195.63, 21,271.54 and 8,990.57

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Solution

The fourth proportional to 14,195.63, 21,271.54 and 8,990.57 is: 13,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195.63 : 21,271.54 = 8,990.57 : x
  2. Step 2: Convert to fraction form
    14,195.63/21,271.54 = 8,990.57/x
  3. Step 3: Cross multiply
    14,195.63x = 21,271.54 × 8,990.57
  4. Step 4: Simplify right side
    14,195.63x = 191,243,269.38
  5. Step 5: Solve for x
    x = 191,243,269.38/14,195.63
  6. Step 6: Final answer
    x = 13,471.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.