Home / 10,320.58-15,480.78-2,529.40

Finding the Fourth Proportional to 10,320.58, 15,480.78 and 2,529.40

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Solution

The fourth proportional to 10,320.58, 15,480.78 and 2,529.40 is: 3,794.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.58 : 15,480.78 = 2,529.40 : x
  2. Step 2: Convert to fraction form
    10,320.58/15,480.78 = 2,529.40/x
  3. Step 3: Cross multiply
    10,320.58x = 15,480.78 × 2,529.40
  4. Step 4: Simplify right side
    10,320.58x = 39,157,084.93
  5. Step 5: Solve for x
    x = 39,157,084.93/10,320.58
  6. Step 6: Final answer
    x = 3,794.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.