Home / 18,502.18-25,533.21-10,118.50

Finding the Fourth Proportional to 18,502.18, 25,533.21 and 10,118.50

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Solution

The fourth proportional to 18,502.18, 25,533.21 and 10,118.50 is: 13,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.18 : 25,533.21 = 10,118.50 : x
  2. Step 2: Convert to fraction form
    18,502.18/25,533.21 = 10,118.50/x
  3. Step 3: Cross multiply
    18,502.18x = 25,533.21 × 10,118.50
  4. Step 4: Simplify right side
    18,502.18x = 258,357,785.39
  5. Step 5: Solve for x
    x = 258,357,785.39/18,502.18
  6. Step 6: Final answer
    x = 13,963.64

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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.