Home / 13,991.54-19,308.21-7,703.70

Finding the Fourth Proportional to 13,991.54, 19,308.21 and 7,703.70

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Solution

The fourth proportional to 13,991.54, 19,308.21 and 7,703.70 is: 10,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.54 : 19,308.21 = 7,703.70 : x
  2. Step 2: Convert to fraction form
    13,991.54/19,308.21 = 7,703.70/x
  3. Step 3: Cross multiply
    13,991.54x = 19,308.21 × 7,703.70
  4. Step 4: Simplify right side
    13,991.54x = 148,744,657.38
  5. Step 5: Solve for x
    x = 148,744,657.38/13,991.54
  6. Step 6: Final answer
    x = 10,631.04

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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.