Home / 14,138.45-19,511.93-7,850.87

Finding the Fourth Proportional to 14,138.45, 19,511.93 and 7,850.87

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Solution

The fourth proportional to 14,138.45, 19,511.93 and 7,850.87 is: 10,834.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.45 : 19,511.93 = 7,850.87 : x
  2. Step 2: Convert to fraction form
    14,138.45/19,511.93 = 7,850.87/x
  3. Step 3: Cross multiply
    14,138.45x = 19,511.93 × 7,850.87
  4. Step 4: Simplify right side
    14,138.45x = 153,185,547.95
  5. Step 5: Solve for x
    x = 153,185,547.95/14,138.45
  6. Step 6: Final answer
    x = 10,834.68

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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.