Home / 12,956.73-17,888.90-9,967.29

Finding the Fourth Proportional to 12,956.73, 17,888.90 and 9,967.29

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Solution

The fourth proportional to 12,956.73, 17,888.90 and 9,967.29 is: 13,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.73 : 17,888.90 = 9,967.29 : x
  2. Step 2: Convert to fraction form
    12,956.73/17,888.90 = 9,967.29/x
  3. Step 3: Cross multiply
    12,956.73x = 17,888.90 × 9,967.29
  4. Step 4: Simplify right side
    12,956.73x = 178,303,804.24
  5. Step 5: Solve for x
    x = 178,303,804.24/12,956.73
  6. Step 6: Final answer
    x = 13,761.48

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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.