Home / 13,853.98-19,125.39-8,551.72

Finding the Fourth Proportional to 13,853.98, 19,125.39 and 8,551.72

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Solution

The fourth proportional to 13,853.98, 19,125.39 and 8,551.72 is: 11,805.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.98 : 19,125.39 = 8,551.72 : x
  2. Step 2: Convert to fraction form
    13,853.98/19,125.39 = 8,551.72/x
  3. Step 3: Cross multiply
    13,853.98x = 19,125.39 × 8,551.72
  4. Step 4: Simplify right side
    13,853.98x = 163,554,980.17
  5. Step 5: Solve for x
    x = 163,554,980.17/13,853.98
  6. Step 6: Final answer
    x = 11,805.63

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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.