Home / 13,494.08-18,615.48-8,776.64

Finding the Fourth Proportional to 13,494.08, 18,615.48 and 8,776.64

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Solution

The fourth proportional to 13,494.08, 18,615.48 and 8,776.64 is: 12,107.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.08 : 18,615.48 = 8,776.64 : x
  2. Step 2: Convert to fraction form
    13,494.08/18,615.48 = 8,776.64/x
  3. Step 3: Cross multiply
    13,494.08x = 18,615.48 × 8,776.64
  4. Step 4: Simplify right side
    13,494.08x = 163,381,366.39
  5. Step 5: Solve for x
    x = 163,381,366.39/13,494.08
  6. Step 6: Final answer
    x = 12,107.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.