Home / 14,043.89-19,374.55-8,074.30

Finding the Fourth Proportional to 14,043.89, 19,374.55 and 8,074.30

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Solution

The fourth proportional to 14,043.89, 19,374.55 and 8,074.30 is: 11,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.89 : 19,374.55 = 8,074.30 : x
  2. Step 2: Convert to fraction form
    14,043.89/19,374.55 = 8,074.30/x
  3. Step 3: Cross multiply
    14,043.89x = 19,374.55 × 8,074.30
  4. Step 4: Simplify right side
    14,043.89x = 156,435,929.07
  5. Step 5: Solve for x
    x = 156,435,929.07/14,043.89
  6. Step 6: Final answer
    x = 11,139.07

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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.