Home / 13,921.48-19,211.78-7,548.06

Finding the Fourth Proportional to 13,921.48, 19,211.78 and 7,548.06

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Solution

The fourth proportional to 13,921.48, 19,211.78 and 7,548.06 is: 10,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.48 : 19,211.78 = 7,548.06 : x
  2. Step 2: Convert to fraction form
    13,921.48/19,211.78 = 7,548.06/x
  3. Step 3: Cross multiply
    13,921.48x = 19,211.78 × 7,548.06
  4. Step 4: Simplify right side
    13,921.48x = 145,011,558.36
  5. Step 5: Solve for x
    x = 145,011,558.36/13,921.48
  6. Step 6: Final answer
    x = 10,416.39

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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.