Home / 7,015.30-9,679.82-4,031.26

Finding the Fourth Proportional to 7,015.30, 9,679.82 and 4,031.26

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Solution

The fourth proportional to 7,015.30, 9,679.82 and 4,031.26 is: 5,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.30 : 9,679.82 = 4,031.26 : x
  2. Step 2: Convert to fraction form
    7,015.30/9,679.82 = 4,031.26/x
  3. Step 3: Cross multiply
    7,015.30x = 9,679.82 × 4,031.26
  4. Step 4: Simplify right side
    7,015.30x = 39,021,871.17
  5. Step 5: Solve for x
    x = 39,021,871.17/7,015.30
  6. Step 6: Final answer
    x = 5,562.40

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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.