Home / 14,140.48-21,215.84-5,378.24

Finding the Fourth Proportional to 14,140.48, 21,215.84 and 5,378.24

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Solution

The fourth proportional to 14,140.48, 21,215.84 and 5,378.24 is: 8,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.48 : 21,215.84 = 5,378.24 : x
  2. Step 2: Convert to fraction form
    14,140.48/21,215.84 = 5,378.24/x
  3. Step 3: Cross multiply
    14,140.48x = 21,215.84 × 5,378.24
  4. Step 4: Simplify right side
    14,140.48x = 114,103,879.32
  5. Step 5: Solve for x
    x = 114,103,879.32/14,140.48
  6. Step 6: Final answer
    x = 8,069.31

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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.