Home / 13,915.67-19,203.59-7,628.09

Finding the Fourth Proportional to 13,915.67, 19,203.59 and 7,628.09

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Solution

The fourth proportional to 13,915.67, 19,203.59 and 7,628.09 is: 10,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.67 : 19,203.59 = 7,628.09 : x
  2. Step 2: Convert to fraction form
    13,915.67/19,203.59 = 7,628.09/x
  3. Step 3: Cross multiply
    13,915.67x = 19,203.59 × 7,628.09
  4. Step 4: Simplify right side
    13,915.67x = 146,486,635.90
  5. Step 5: Solve for x
    x = 146,486,635.90/13,915.67
  6. Step 6: Final answer
    x = 10,526.74

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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.