Home / 10,412.38-15,615.30-3,485.26

Finding the Fourth Proportional to 10,412.38, 15,615.30 and 3,485.26

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Solution

The fourth proportional to 10,412.38, 15,615.30 and 3,485.26 is: 5,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.38 : 15,615.30 = 3,485.26 : x
  2. Step 2: Convert to fraction form
    10,412.38/15,615.30 = 3,485.26/x
  3. Step 3: Cross multiply
    10,412.38x = 15,615.30 × 3,485.26
  4. Step 4: Simplify right side
    10,412.38x = 54,423,380.48
  5. Step 5: Solve for x
    x = 54,423,380.48/10,412.38
  6. Step 6: Final answer
    x = 5,226.80

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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.