Home / 13,015.61-17,948.12-11,133.42

Finding the Fourth Proportional to 13,015.61, 17,948.12 and 11,133.42

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Solution

The fourth proportional to 13,015.61, 17,948.12 and 11,133.42 is: 15,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.61 : 17,948.12 = 11,133.42 : x
  2. Step 2: Convert to fraction form
    13,015.61/17,948.12 = 11,133.42/x
  3. Step 3: Cross multiply
    13,015.61x = 17,948.12 × 11,133.42
  4. Step 4: Simplify right side
    13,015.61x = 199,823,984.88
  5. Step 5: Solve for x
    x = 199,823,984.88/13,015.61
  6. Step 6: Final answer
    x = 15,352.64

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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.