Home / 13,866.75-19,136.30-7,579.26

Finding the Fourth Proportional to 13,866.75, 19,136.30 and 7,579.26

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Solution

The fourth proportional to 13,866.75, 19,136.30 and 7,579.26 is: 10,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.75 : 19,136.30 = 7,579.26 : x
  2. Step 2: Convert to fraction form
    13,866.75/19,136.30 = 7,579.26/x
  3. Step 3: Cross multiply
    13,866.75x = 19,136.30 × 7,579.26
  4. Step 4: Simplify right side
    13,866.75x = 145,038,955.24
  5. Step 5: Solve for x
    x = 145,038,955.24/13,866.75
  6. Step 6: Final answer
    x = 10,459.48

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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.