Home / 13,278.93-19,913.64-4,392.63

Finding the Fourth Proportional to 13,278.93, 19,913.64 and 4,392.63

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Solution

The fourth proportional to 13,278.93, 19,913.64 and 4,392.63 is: 6,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.93 : 19,913.64 = 4,392.63 : x
  2. Step 2: Convert to fraction form
    13,278.93/19,913.64 = 4,392.63/x
  3. Step 3: Cross multiply
    13,278.93x = 19,913.64 × 4,392.63
  4. Step 4: Simplify right side
    13,278.93x = 87,473,252.47
  5. Step 5: Solve for x
    x = 87,473,252.47/13,278.93
  6. Step 6: Final answer
    x = 6,587.37

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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.