Home / 12,710.60-19,061.80-11,881.36

Finding the Fourth Proportional to 12,710.60, 19,061.80 and 11,881.36

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Solution

The fourth proportional to 12,710.60, 19,061.80 and 11,881.36 is: 17,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.60 : 19,061.80 = 11,881.36 : x
  2. Step 2: Convert to fraction form
    12,710.60/19,061.80 = 11,881.36/x
  3. Step 3: Cross multiply
    12,710.60x = 19,061.80 × 11,881.36
  4. Step 4: Simplify right side
    12,710.60x = 226,480,108.05
  5. Step 5: Solve for x
    x = 226,480,108.05/12,710.60
  6. Step 6: Final answer
    x = 17,818.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.