Home / 10,372.24-15,549.72-4,128.40

Finding the Fourth Proportional to 10,372.24, 15,549.72 and 4,128.40

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Solution

The fourth proportional to 10,372.24, 15,549.72 and 4,128.40 is: 6,189.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.24 : 15,549.72 = 4,128.40 : x
  2. Step 2: Convert to fraction form
    10,372.24/15,549.72 = 4,128.40/x
  3. Step 3: Cross multiply
    10,372.24x = 15,549.72 × 4,128.40
  4. Step 4: Simplify right side
    10,372.24x = 64,195,464.05
  5. Step 5: Solve for x
    x = 64,195,464.05/10,372.24
  6. Step 6: Final answer
    x = 6,189.16

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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.