Home / 19,257.17-28,848.16-12,663.36

Finding the Fourth Proportional to 19,257.17, 28,848.16 and 12,663.36

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Solution

The fourth proportional to 19,257.17, 28,848.16 and 12,663.36 is: 18,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,257.17 : 28,848.16 = 12,663.36 : x
  2. Step 2: Convert to fraction form
    19,257.17/28,848.16 = 12,663.36/x
  3. Step 3: Cross multiply
    19,257.17x = 28,848.16 × 12,663.36
  4. Step 4: Simplify right side
    19,257.17x = 365,314,635.42
  5. Step 5: Solve for x
    x = 365,314,635.42/19,257.17
  6. Step 6: Final answer
    x = 18,970.32

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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.