Home / 11,470.82-15,829.89-6,690.63

Finding the Fourth Proportional to 11,470.82, 15,829.89 and 6,690.63

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Solution

The fourth proportional to 11,470.82, 15,829.89 and 6,690.63 is: 9,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.82 : 15,829.89 = 6,690.63 : x
  2. Step 2: Convert to fraction form
    11,470.82/15,829.89 = 6,690.63/x
  3. Step 3: Cross multiply
    11,470.82x = 15,829.89 × 6,690.63
  4. Step 4: Simplify right side
    11,470.82x = 105,911,936.93
  5. Step 5: Solve for x
    x = 105,911,936.93/11,470.82
  6. Step 6: Final answer
    x = 9,233.17

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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.