Home / 18,383.13-25,368.39-10,206.45

Finding the Fourth Proportional to 18,383.13, 25,368.39 and 10,206.45

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Solution

The fourth proportional to 18,383.13, 25,368.39 and 10,206.45 is: 14,084.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.13 : 25,368.39 = 10,206.45 : x
  2. Step 2: Convert to fraction form
    18,383.13/25,368.39 = 10,206.45/x
  3. Step 3: Cross multiply
    18,383.13x = 25,368.39 × 10,206.45
  4. Step 4: Simplify right side
    18,383.13x = 258,921,204.12
  5. Step 5: Solve for x
    x = 258,921,204.12/18,383.13
  6. Step 6: Final answer
    x = 14,084.72

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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.