Home / 13,992.52-19,314.74-9,278.36

Finding the Fourth Proportional to 13,992.52, 19,314.74 and 9,278.36

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Solution

The fourth proportional to 13,992.52, 19,314.74 and 9,278.36 is: 12,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.52 : 19,314.74 = 9,278.36 : x
  2. Step 2: Convert to fraction form
    13,992.52/19,314.74 = 9,278.36/x
  3. Step 3: Cross multiply
    13,992.52x = 19,314.74 × 9,278.36
  4. Step 4: Simplify right side
    13,992.52x = 179,209,111.03
  5. Step 5: Solve for x
    x = 179,209,111.03/13,992.52
  6. Step 6: Final answer
    x = 12,807.49

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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.