Home / 18,504.16-25,535.44-10,120.48

Finding the Fourth Proportional to 18,504.16, 25,535.44 and 10,120.48

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Solution

The fourth proportional to 18,504.16, 25,535.44 and 10,120.48 is: 13,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.16 : 25,535.44 = 10,120.48 : x
  2. Step 2: Convert to fraction form
    18,504.16/25,535.44 = 10,120.48/x
  3. Step 3: Cross multiply
    18,504.16x = 25,535.44 × 10,120.48
  4. Step 4: Simplify right side
    18,504.16x = 258,430,909.81
  5. Step 5: Solve for x
    x = 258,430,909.81/18,504.16
  6. Step 6: Final answer
    x = 13,966.10

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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.