Home / 13,915.29-19,203.99-7,627.68

Finding the Fourth Proportional to 13,915.29, 19,203.99 and 7,627.68

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Solution

The fourth proportional to 13,915.29, 19,203.99 and 7,627.68 is: 10,526.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.29 : 19,203.99 = 7,627.68 : x
  2. Step 2: Convert to fraction form
    13,915.29/19,203.99 = 7,627.68/x
  3. Step 3: Cross multiply
    13,915.29x = 19,203.99 × 7,627.68
  4. Step 4: Simplify right side
    13,915.29x = 146,481,890.44
  5. Step 5: Solve for x
    x = 146,481,890.44/13,915.29
  6. Step 6: Final answer
    x = 10,526.69

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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.