Home / 13,220.30-19,829.42-4,896.40

Finding the Fourth Proportional to 13,220.30, 19,829.42 and 4,896.40

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Solution

The fourth proportional to 13,220.30, 19,829.42 and 4,896.40 is: 7,344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.30 : 19,829.42 = 4,896.40 : x
  2. Step 2: Convert to fraction form
    13,220.30/19,829.42 = 4,896.40/x
  3. Step 3: Cross multiply
    13,220.30x = 19,829.42 × 4,896.40
  4. Step 4: Simplify right side
    13,220.30x = 97,092,772.09
  5. Step 5: Solve for x
    x = 97,092,772.09/13,220.30
  6. Step 6: Final answer
    x = 7,344.22

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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.