Home / 13,817.12-19,067.63-7,529.49

Finding the Fourth Proportional to 13,817.12, 19,067.63 and 7,529.49

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Solution

The fourth proportional to 13,817.12, 19,067.63 and 7,529.49 is: 10,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.12 : 19,067.63 = 7,529.49 : x
  2. Step 2: Convert to fraction form
    13,817.12/19,067.63 = 7,529.49/x
  3. Step 3: Cross multiply
    13,817.12x = 19,067.63 × 7,529.49
  4. Step 4: Simplify right side
    13,817.12x = 143,569,491.76
  5. Step 5: Solve for x
    x = 143,569,491.76/13,817.12
  6. Step 6: Final answer
    x = 10,390.70

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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.