Home / 12,749.76-19,124.64-4,536

Finding the Fourth Proportional to 12,749.76, 19,124.64 and 4,536

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Solution

The fourth proportional to 12,749.76, 19,124.64 and 4,536 is: 6,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.76 : 19,124.64 = 4,536 : x
  2. Step 2: Convert to fraction form
    12,749.76/19,124.64 = 4,536/x
  3. Step 3: Cross multiply
    12,749.76x = 19,124.64 × 4,536
  4. Step 4: Simplify right side
    12,749.76x = 86,749,367.04
  5. Step 5: Solve for x
    x = 86,749,367.04/12,749.76
  6. Step 6: Final answer
    x = 6,804.00

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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.