Home / 17,980.84-26,957.36-12,418.11

Finding the Fourth Proportional to 17,980.84, 26,957.36 and 12,418.11

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Solution

The fourth proportional to 17,980.84, 26,957.36 and 12,418.11 is: 18,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.84 : 26,957.36 = 12,418.11 : x
  2. Step 2: Convert to fraction form
    17,980.84/26,957.36 = 12,418.11/x
  3. Step 3: Cross multiply
    17,980.84x = 26,957.36 × 12,418.11
  4. Step 4: Simplify right side
    17,980.84x = 334,759,422.98
  5. Step 5: Solve for x
    x = 334,759,422.98/17,980.84
  6. Step 6: Final answer
    x = 18,617.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.