Home / 13,945.21-19,244.73-7,657.59

Finding the Fourth Proportional to 13,945.21, 19,244.73 and 7,657.59

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Solution

The fourth proportional to 13,945.21, 19,244.73 and 7,657.59 is: 10,567.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.21 : 19,244.73 = 7,657.59 : x
  2. Step 2: Convert to fraction form
    13,945.21/19,244.73 = 7,657.59/x
  3. Step 3: Cross multiply
    13,945.21x = 19,244.73 × 7,657.59
  4. Step 4: Simplify right side
    13,945.21x = 147,368,155.78
  5. Step 5: Solve for x
    x = 147,368,155.78/13,945.21
  6. Step 6: Final answer
    x = 10,567.65

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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.