Home / 13,707.58-18,896.66-8,983.66

Finding the Fourth Proportional to 13,707.58, 18,896.66 and 8,983.66

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Solution

The fourth proportional to 13,707.58, 18,896.66 and 8,983.66 is: 12,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.58 : 18,896.66 = 8,983.66 : x
  2. Step 2: Convert to fraction form
    13,707.58/18,896.66 = 8,983.66/x
  3. Step 3: Cross multiply
    13,707.58x = 18,896.66 × 8,983.66
  4. Step 4: Simplify right side
    13,707.58x = 169,761,168.58
  5. Step 5: Solve for x
    x = 169,761,168.58/13,707.58
  6. Step 6: Final answer
    x = 12,384.47

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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.