Home / 13,897.25-19,178.39-7,609.49

Finding the Fourth Proportional to 13,897.25, 19,178.39 and 7,609.49

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Solution

The fourth proportional to 13,897.25, 19,178.39 and 7,609.49 is: 10,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.25 : 19,178.39 = 7,609.49 : x
  2. Step 2: Convert to fraction form
    13,897.25/19,178.39 = 7,609.49/x
  3. Step 3: Cross multiply
    13,897.25x = 19,178.39 × 7,609.49
  4. Step 4: Simplify right side
    13,897.25x = 145,937,728.87
  5. Step 5: Solve for x
    x = 145,937,728.87/13,897.25
  6. Step 6: Final answer
    x = 10,501.19

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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.