Home / 14,285.66-21,448.15-7,270.43

Finding the Fourth Proportional to 14,285.66, 21,448.15 and 7,270.43

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Solution

The fourth proportional to 14,285.66, 21,448.15 and 7,270.43 is: 10,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.66 : 21,448.15 = 7,270.43 : x
  2. Step 2: Convert to fraction form
    14,285.66/21,448.15 = 7,270.43/x
  3. Step 3: Cross multiply
    14,285.66x = 21,448.15 × 7,270.43
  4. Step 4: Simplify right side
    14,285.66x = 155,937,147.79
  5. Step 5: Solve for x
    x = 155,937,147.79/14,285.66
  6. Step 6: Final answer
    x = 10,915.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.