Home / 18,628.92-25,705.62-11,075.40

Finding the Fourth Proportional to 18,628.92, 25,705.62 and 11,075.40

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Solution

The fourth proportional to 18,628.92, 25,705.62 and 11,075.40 is: 15,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.92 : 25,705.62 = 11,075.40 : x
  2. Step 2: Convert to fraction form
    18,628.92/25,705.62 = 11,075.40/x
  3. Step 3: Cross multiply
    18,628.92x = 25,705.62 × 11,075.40
  4. Step 4: Simplify right side
    18,628.92x = 284,700,023.75
  5. Step 5: Solve for x
    x = 284,700,023.75/18,628.92
  6. Step 6: Final answer
    x = 15,282.69

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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.