Home / 13,017.40-17,959.58-7,351.48

Finding the Fourth Proportional to 13,017.40, 17,959.58 and 7,351.48

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Solution

The fourth proportional to 13,017.40, 17,959.58 and 7,351.48 is: 10,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.40 : 17,959.58 = 7,351.48 : x
  2. Step 2: Convert to fraction form
    13,017.40/17,959.58 = 7,351.48/x
  3. Step 3: Cross multiply
    13,017.40x = 17,959.58 × 7,351.48
  4. Step 4: Simplify right side
    13,017.40x = 132,029,493.18
  5. Step 5: Solve for x
    x = 132,029,493.18/13,017.40
  6. Step 6: Final answer
    x = 10,142.54

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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.