Home / 19,615.06-29,419.48-8,518.77

Finding the Fourth Proportional to 19,615.06, 29,419.48 and 8,518.77

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Solution

The fourth proportional to 19,615.06, 29,419.48 and 8,518.77 is: 12,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.06 : 29,419.48 = 8,518.77 : x
  2. Step 2: Convert to fraction form
    19,615.06/29,419.48 = 8,518.77/x
  3. Step 3: Cross multiply
    19,615.06x = 29,419.48 × 8,518.77
  4. Step 4: Simplify right side
    19,615.06x = 250,617,783.64
  5. Step 5: Solve for x
    x = 250,617,783.64/19,615.06
  6. Step 6: Final answer
    x = 12,776.80

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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.