Home / 14,238.79-21,357.54-4,879.64

Finding the Fourth Proportional to 14,238.79, 21,357.54 and 4,879.64

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Solution

The fourth proportional to 14,238.79, 21,357.54 and 4,879.64 is: 7,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.79 : 21,357.54 = 4,879.64 : x
  2. Step 2: Convert to fraction form
    14,238.79/21,357.54 = 4,879.64/x
  3. Step 3: Cross multiply
    14,238.79x = 21,357.54 × 4,879.64
  4. Step 4: Simplify right side
    14,238.79x = 104,217,159.88
  5. Step 5: Solve for x
    x = 104,217,159.88/14,238.79
  6. Step 6: Final answer
    x = 7,319.24

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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.