Home / 14,280.07-19,705.85-7,906.21

Finding the Fourth Proportional to 14,280.07, 19,705.85 and 7,906.21

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Solution

The fourth proportional to 14,280.07, 19,705.85 and 7,906.21 is: 10,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.07 : 19,705.85 = 7,906.21 : x
  2. Step 2: Convert to fraction form
    14,280.07/19,705.85 = 7,906.21/x
  3. Step 3: Cross multiply
    14,280.07x = 19,705.85 × 7,906.21
  4. Step 4: Simplify right side
    14,280.07x = 155,798,499.53
  5. Step 5: Solve for x
    x = 155,798,499.53/14,280.07
  6. Step 6: Final answer
    x = 10,910.21

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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.