Home / 13,855.52-19,120.11-7,567.76

Finding the Fourth Proportional to 13,855.52, 19,120.11 and 7,567.76

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Solution

The fourth proportional to 13,855.52, 19,120.11 and 7,567.76 is: 10,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.52 : 19,120.11 = 7,567.76 : x
  2. Step 2: Convert to fraction form
    13,855.52/19,120.11 = 7,567.76/x
  3. Step 3: Cross multiply
    13,855.52x = 19,120.11 × 7,567.76
  4. Step 4: Simplify right side
    13,855.52x = 144,696,403.65
  5. Step 5: Solve for x
    x = 144,696,403.65/13,855.52
  6. Step 6: Final answer
    x = 10,443.23

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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.