Home / 18,533.21-25,565.45-10,972.16

Finding the Fourth Proportional to 18,533.21, 25,565.45 and 10,972.16

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Solution

The fourth proportional to 18,533.21, 25,565.45 and 10,972.16 is: 15,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533.21 : 25,565.45 = 10,972.16 : x
  2. Step 2: Convert to fraction form
    18,533.21/25,565.45 = 10,972.16/x
  3. Step 3: Cross multiply
    18,533.21x = 25,565.45 × 10,972.16
  4. Step 4: Simplify right side
    18,533.21x = 280,508,207.87
  5. Step 5: Solve for x
    x = 280,508,207.87/18,533.21
  6. Step 6: Final answer
    x = 15,135.44

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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.