Home / 13,604.48-18,758.72-12,277.76

Finding the Fourth Proportional to 13,604.48, 18,758.72 and 12,277.76

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Solution

The fourth proportional to 13,604.48, 18,758.72 and 12,277.76 is: 16,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.48 : 18,758.72 = 12,277.76 : x
  2. Step 2: Convert to fraction form
    13,604.48/18,758.72 = 12,277.76/x
  3. Step 3: Cross multiply
    13,604.48x = 18,758.72 × 12,277.76
  4. Step 4: Simplify right side
    13,604.48x = 230,315,062.07
  5. Step 5: Solve for x
    x = 230,315,062.07/13,604.48
  6. Step 6: Final answer
    x = 16,929.35

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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.