Home / 13,889.66-19,150.16-10,109.79

Finding the Fourth Proportional to 13,889.66, 19,150.16 and 10,109.79

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Solution

The fourth proportional to 13,889.66, 19,150.16 and 10,109.79 is: 13,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.66 : 19,150.16 = 10,109.79 : x
  2. Step 2: Convert to fraction form
    13,889.66/19,150.16 = 10,109.79/x
  3. Step 3: Cross multiply
    13,889.66x = 19,150.16 × 10,109.79
  4. Step 4: Simplify right side
    13,889.66x = 193,604,045.52
  5. Step 5: Solve for x
    x = 193,604,045.52/13,889.66
  6. Step 6: Final answer
    x = 13,938.72

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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.