Home / 12,444.31-17,172.80-6,855.31

Finding the Fourth Proportional to 12,444.31, 17,172.80 and 6,855.31

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Solution

The fourth proportional to 12,444.31, 17,172.80 and 6,855.31 is: 9,460.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.31 : 17,172.80 = 6,855.31 : x
  2. Step 2: Convert to fraction form
    12,444.31/17,172.80 = 6,855.31/x
  3. Step 3: Cross multiply
    12,444.31x = 17,172.80 × 6,855.31
  4. Step 4: Simplify right side
    12,444.31x = 117,724,781.70
  5. Step 5: Solve for x
    x = 117,724,781.70/12,444.31
  6. Step 6: Final answer
    x = 9,460.13

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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.