Home / 11,764.20-17,646.30-7,390.20

Finding the Fourth Proportional to 11,764.20, 17,646.30 and 7,390.20

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Solution

The fourth proportional to 11,764.20, 17,646.30 and 7,390.20 is: 11,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,764.20 : 17,646.30 = 7,390.20 : x
  2. Step 2: Convert to fraction form
    11,764.20/17,646.30 = 7,390.20/x
  3. Step 3: Cross multiply
    11,764.20x = 17,646.30 × 7,390.20
  4. Step 4: Simplify right side
    11,764.20x = 130,409,686.26
  5. Step 5: Solve for x
    x = 130,409,686.26/11,764.20
  6. Step 6: Final answer
    x = 11,085.30

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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.