Home / 19,518.75-29,277.09-5,479.77

Finding the Fourth Proportional to 19,518.75, 29,277.09 and 5,479.77

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Solution

The fourth proportional to 19,518.75, 29,277.09 and 5,479.77 is: 8,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.75 : 29,277.09 = 5,479.77 : x
  2. Step 2: Convert to fraction form
    19,518.75/29,277.09 = 5,479.77/x
  3. Step 3: Cross multiply
    19,518.75x = 29,277.09 × 5,479.77
  4. Step 4: Simplify right side
    19,518.75x = 160,431,719.47
  5. Step 5: Solve for x
    x = 160,431,719.47/19,518.75
  6. Step 6: Final answer
    x = 8,219.36

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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.