Home / 11,948.78-16,484.90-7,231.34

Finding the Fourth Proportional to 11,948.78, 16,484.90 and 7,231.34

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Solution

The fourth proportional to 11,948.78, 16,484.90 and 7,231.34 is: 9,976.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.78 : 16,484.90 = 7,231.34 : x
  2. Step 2: Convert to fraction form
    11,948.78/16,484.90 = 7,231.34/x
  3. Step 3: Cross multiply
    11,948.78x = 16,484.90 × 7,231.34
  4. Step 4: Simplify right side
    11,948.78x = 119,207,916.77
  5. Step 5: Solve for x
    x = 119,207,916.77/11,948.78
  6. Step 6: Final answer
    x = 9,976.58

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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.