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Finding the Fourth Proportional to 13,897.60, 19,179 and 7,610.08

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Solution

The fourth proportional to 13,897.60, 19,179 and 7,610.08 is: 10,502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.60 : 19,179 = 7,610.08 : x
  2. Step 2: Convert to fraction form
    13,897.60/19,179 = 7,610.08/x
  3. Step 3: Cross multiply
    13,897.60x = 19,179 × 7,610.08
  4. Step 4: Simplify right side
    13,897.60x = 145,953,724.32
  5. Step 5: Solve for x
    x = 145,953,724.32/13,897.60
  6. Step 6: Final answer
    x = 10,502.08

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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.