Home / 10,145.28-15,214.80-3,904.80

Finding the Fourth Proportional to 10,145.28, 15,214.80 and 3,904.80

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Solution

The fourth proportional to 10,145.28, 15,214.80 and 3,904.80 is: 5,856.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.28 : 15,214.80 = 3,904.80 : x
  2. Step 2: Convert to fraction form
    10,145.28/15,214.80 = 3,904.80/x
  3. Step 3: Cross multiply
    10,145.28x = 15,214.80 × 3,904.80
  4. Step 4: Simplify right side
    10,145.28x = 59,410,751.04
  5. Step 5: Solve for x
    x = 59,410,751.04/10,145.28
  6. Step 6: Final answer
    x = 5,856.00

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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.