Home / 13,637.85-18,819.34-7,669.66

Finding the Fourth Proportional to 13,637.85, 18,819.34 and 7,669.66

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Solution

The fourth proportional to 13,637.85, 18,819.34 and 7,669.66 is: 10,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.85 : 18,819.34 = 7,669.66 : x
  2. Step 2: Convert to fraction form
    13,637.85/18,819.34 = 7,669.66/x
  3. Step 3: Cross multiply
    13,637.85x = 18,819.34 × 7,669.66
  4. Step 4: Simplify right side
    13,637.85x = 144,337,939.22
  5. Step 5: Solve for x
    x = 144,337,939.22/13,637.85
  6. Step 6: Final answer
    x = 10,583.63

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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.