Home / 11,473.61-15,830.89-6,690.69

Finding the Fourth Proportional to 11,473.61, 15,830.89 and 6,690.69

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Solution

The fourth proportional to 11,473.61, 15,830.89 and 6,690.69 is: 9,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,473.61 : 15,830.89 = 6,690.69 : x
  2. Step 2: Convert to fraction form
    11,473.61/15,830.89 = 6,690.69/x
  3. Step 3: Cross multiply
    11,473.61x = 15,830.89 × 6,690.69
  4. Step 4: Simplify right side
    11,473.61x = 105,919,560.69
  5. Step 5: Solve for x
    x = 105,919,560.69/11,473.61
  6. Step 6: Final answer
    x = 9,231.58

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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.