Home / 13,948.14-19,239.39-8,913.90

Finding the Fourth Proportional to 13,948.14, 19,239.39 and 8,913.90

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Solution

The fourth proportional to 13,948.14, 19,239.39 and 8,913.90 is: 12,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.14 : 19,239.39 = 8,913.90 : x
  2. Step 2: Convert to fraction form
    13,948.14/19,239.39 = 8,913.90/x
  3. Step 3: Cross multiply
    13,948.14x = 19,239.39 × 8,913.90
  4. Step 4: Simplify right side
    13,948.14x = 171,497,998.52
  5. Step 5: Solve for x
    x = 171,497,998.52/13,948.14
  6. Step 6: Final answer
    x = 12,295.40

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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.