Home / 14,011.50-21,020.58-4,777.50

Finding the Fourth Proportional to 14,011.50, 21,020.58 and 4,777.50

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Solution

The fourth proportional to 14,011.50, 21,020.58 and 4,777.50 is: 7,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.50 : 21,020.58 = 4,777.50 : x
  2. Step 2: Convert to fraction form
    14,011.50/21,020.58 = 4,777.50/x
  3. Step 3: Cross multiply
    14,011.50x = 21,020.58 × 4,777.50
  4. Step 4: Simplify right side
    14,011.50x = 100,425,820.95
  5. Step 5: Solve for x
    x = 100,425,820.95/14,011.50
  6. Step 6: Final answer
    x = 7,167.39

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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.