Home / 10,653.31-15,979.95-4,079.49

Finding the Fourth Proportional to 10,653.31, 15,979.95 and 4,079.49

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Solution

The fourth proportional to 10,653.31, 15,979.95 and 4,079.49 is: 6,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.31 : 15,979.95 = 4,079.49 : x
  2. Step 2: Convert to fraction form
    10,653.31/15,979.95 = 4,079.49/x
  3. Step 3: Cross multiply
    10,653.31x = 15,979.95 × 4,079.49
  4. Step 4: Simplify right side
    10,653.31x = 65,189,986.30
  5. Step 5: Solve for x
    x = 65,189,986.30/10,653.31
  6. Step 6: Final answer
    x = 6,119.23

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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.