Home / 13,995.52-19,313.79-7,707.88

Finding the Fourth Proportional to 13,995.52, 19,313.79 and 7,707.88

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Solution

The fourth proportional to 13,995.52, 19,313.79 and 7,707.88 is: 10,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.52 : 19,313.79 = 7,707.88 : x
  2. Step 2: Convert to fraction form
    13,995.52/19,313.79 = 7,707.88/x
  3. Step 3: Cross multiply
    13,995.52x = 19,313.79 × 7,707.88
  4. Step 4: Simplify right side
    13,995.52x = 148,868,375.67
  5. Step 5: Solve for x
    x = 148,868,375.67/13,995.52
  6. Step 6: Final answer
    x = 10,636.86

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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.