Home / 13,991.48-19,308.18-7,703.85

Finding the Fourth Proportional to 13,991.48, 19,308.18 and 7,703.85

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Solution

The fourth proportional to 13,991.48, 19,308.18 and 7,703.85 is: 10,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.48 : 19,308.18 = 7,703.85 : x
  2. Step 2: Convert to fraction form
    13,991.48/19,308.18 = 7,703.85/x
  3. Step 3: Cross multiply
    13,991.48x = 19,308.18 × 7,703.85
  4. Step 4: Simplify right side
    13,991.48x = 148,747,322.49
  5. Step 5: Solve for x
    x = 148,747,322.49/13,991.48
  6. Step 6: Final answer
    x = 10,631.28

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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.