Home / 18,541.98-25,612.47-13,818.06

Finding the Fourth Proportional to 18,541.98, 25,612.47 and 13,818.06

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Solution

The fourth proportional to 18,541.98, 25,612.47 and 13,818.06 is: 19,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.98 : 25,612.47 = 13,818.06 : x
  2. Step 2: Convert to fraction form
    18,541.98/25,612.47 = 13,818.06/x
  3. Step 3: Cross multiply
    18,541.98x = 25,612.47 × 13,818.06
  4. Step 4: Simplify right side
    18,541.98x = 353,914,647.21
  5. Step 5: Solve for x
    x = 353,914,647.21/18,541.98
  6. Step 6: Final answer
    x = 19,087.21

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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.