Home / 14,119.23-21,165.89-4,878.75

Finding the Fourth Proportional to 14,119.23, 21,165.89 and 4,878.75

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Solution

The fourth proportional to 14,119.23, 21,165.89 and 4,878.75 is: 7,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.23 : 21,165.89 = 4,878.75 : x
  2. Step 2: Convert to fraction form
    14,119.23/21,165.89 = 4,878.75/x
  3. Step 3: Cross multiply
    14,119.23x = 21,165.89 × 4,878.75
  4. Step 4: Simplify right side
    14,119.23x = 103,263,061.44
  5. Step 5: Solve for x
    x = 103,263,061.44/14,119.23
  6. Step 6: Final answer
    x = 7,313.65

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1.5x scale

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.