Home / 18,447.84-25,456.05-10,381.35

Finding the Fourth Proportional to 18,447.84, 25,456.05 and 10,381.35

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Solution

The fourth proportional to 18,447.84, 25,456.05 and 10,381.35 is: 14,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.84 : 25,456.05 = 10,381.35 : x
  2. Step 2: Convert to fraction form
    18,447.84/25,456.05 = 10,381.35/x
  3. Step 3: Cross multiply
    18,447.84x = 25,456.05 × 10,381.35
  4. Step 4: Simplify right side
    18,447.84x = 264,268,112.76
  5. Step 5: Solve for x
    x = 264,268,112.76/18,447.84
  6. Step 6: Final answer
    x = 14,325.16

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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.