Home / 11,290.46-15,580.63-6,814.40

Finding the Fourth Proportional to 11,290.46, 15,580.63 and 6,814.40

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Solution

The fourth proportional to 11,290.46, 15,580.63 and 6,814.40 is: 9,403.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.46 : 15,580.63 = 6,814.40 : x
  2. Step 2: Convert to fraction form
    11,290.46/15,580.63 = 6,814.40/x
  3. Step 3: Cross multiply
    11,290.46x = 15,580.63 × 6,814.40
  4. Step 4: Simplify right side
    11,290.46x = 106,172,687.98
  5. Step 5: Solve for x
    x = 106,172,687.98/11,290.46
  6. Step 6: Final answer
    x = 9,403.75

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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.