Home / 13,313.04-18,238.84-12,814.56

Finding the Fourth Proportional to 13,313.04, 18,238.84 and 12,814.56

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Solution

The fourth proportional to 13,313.04, 18,238.84 and 12,814.56 is: 17,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.04 : 18,238.84 = 12,814.56 : x
  2. Step 2: Convert to fraction form
    13,313.04/18,238.84 = 12,814.56/x
  3. Step 3: Cross multiply
    13,313.04x = 18,238.84 × 12,814.56
  4. Step 4: Simplify right side
    13,313.04x = 233,722,709.51
  5. Step 5: Solve for x
    x = 233,722,709.51/13,313.04
  6. Step 6: Final answer
    x = 17,555.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.