Home / 18,003.45-24,840.78-10,445.40

Finding the Fourth Proportional to 18,003.45, 24,840.78 and 10,445.40

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Solution

The fourth proportional to 18,003.45, 24,840.78 and 10,445.40 is: 14,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.45 : 24,840.78 = 10,445.40 : x
  2. Step 2: Convert to fraction form
    18,003.45/24,840.78 = 10,445.40/x
  3. Step 3: Cross multiply
    18,003.45x = 24,840.78 × 10,445.40
  4. Step 4: Simplify right side
    18,003.45x = 259,471,883.41
  5. Step 5: Solve for x
    x = 259,471,883.41/18,003.45
  6. Step 6: Final answer
    x = 14,412.34

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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.