Home / 11,403.04-15,736.26-6,687.40

Finding the Fourth Proportional to 11,403.04, 15,736.26 and 6,687.40

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Solution

The fourth proportional to 11,403.04, 15,736.26 and 6,687.40 is: 9,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.04 : 15,736.26 = 6,687.40 : x
  2. Step 2: Convert to fraction form
    11,403.04/15,736.26 = 6,687.40/x
  3. Step 3: Cross multiply
    11,403.04x = 15,736.26 × 6,687.40
  4. Step 4: Simplify right side
    11,403.04x = 105,234,665.12
  5. Step 5: Solve for x
    x = 105,234,665.12/11,403.04
  6. Step 6: Final answer
    x = 9,228.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.