Home / 13,890.06-19,167.81-7,923.66

Finding the Fourth Proportional to 13,890.06, 19,167.81 and 7,923.66

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Solution

The fourth proportional to 13,890.06, 19,167.81 and 7,923.66 is: 10,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.06 : 19,167.81 = 7,923.66 : x
  2. Step 2: Convert to fraction form
    13,890.06/19,167.81 = 7,923.66/x
  3. Step 3: Cross multiply
    13,890.06x = 19,167.81 × 7,923.66
  4. Step 4: Simplify right side
    13,890.06x = 151,879,209.38
  5. Step 5: Solve for x
    x = 151,879,209.38/13,890.06
  6. Step 6: Final answer
    x = 10,934.38

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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.