Home / 13,278.98-18,326.06-7,614.25

Finding the Fourth Proportional to 13,278.98, 18,326.06 and 7,614.25

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Solution

The fourth proportional to 13,278.98, 18,326.06 and 7,614.25 is: 10,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.98 : 18,326.06 = 7,614.25 : x
  2. Step 2: Convert to fraction form
    13,278.98/18,326.06 = 7,614.25/x
  3. Step 3: Cross multiply
    13,278.98x = 18,326.06 × 7,614.25
  4. Step 4: Simplify right side
    13,278.98x = 139,539,164.28
  5. Step 5: Solve for x
    x = 139,539,164.28/13,278.98
  6. Step 6: Final answer
    x = 10,508.28

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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.