Home / 13,604.76-18,776.63-8,302.66

Finding the Fourth Proportional to 13,604.76, 18,776.63 and 8,302.66

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Solution

The fourth proportional to 13,604.76, 18,776.63 and 8,302.66 is: 11,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.76 : 18,776.63 = 8,302.66 : x
  2. Step 2: Convert to fraction form
    13,604.76/18,776.63 = 8,302.66/x
  3. Step 3: Cross multiply
    13,604.76x = 18,776.63 × 8,302.66
  4. Step 4: Simplify right side
    13,604.76x = 155,895,948.65
  5. Step 5: Solve for x
    x = 155,895,948.65/13,604.76
  6. Step 6: Final answer
    x = 11,458.93

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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.