Home / 10,419.10-15,628.65-3,493.60

Finding the Fourth Proportional to 10,419.10, 15,628.65 and 3,493.60

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Solution

The fourth proportional to 10,419.10, 15,628.65 and 3,493.60 is: 5,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.10 : 15,628.65 = 3,493.60 : x
  2. Step 2: Convert to fraction form
    10,419.10/15,628.65 = 3,493.60/x
  3. Step 3: Cross multiply
    10,419.10x = 15,628.65 × 3,493.60
  4. Step 4: Simplify right side
    10,419.10x = 54,600,251.64
  5. Step 5: Solve for x
    x = 54,600,251.64/10,419.10
  6. Step 6: Final answer
    x = 5,240.40

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1.5x scale

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.