Home / 13,948.66-19,243.58-8,911.58

Finding the Fourth Proportional to 13,948.66, 19,243.58 and 8,911.58

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Solution

The fourth proportional to 13,948.66, 19,243.58 and 8,911.58 is: 12,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.66 : 19,243.58 = 8,911.58 : x
  2. Step 2: Convert to fraction form
    13,948.66/19,243.58 = 8,911.58/x
  3. Step 3: Cross multiply
    13,948.66x = 19,243.58 × 8,911.58
  4. Step 4: Simplify right side
    13,948.66x = 171,490,606.44
  5. Step 5: Solve for x
    x = 171,490,606.44/13,948.66
  6. Step 6: Final answer
    x = 12,294.41

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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.