Home / 11,558.40-17,325.18-4,987.68

Finding the Fourth Proportional to 11,558.40, 17,325.18 and 4,987.68

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Solution

The fourth proportional to 11,558.40, 17,325.18 and 4,987.68 is: 7,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,558.40 : 17,325.18 = 4,987.68 : x
  2. Step 2: Convert to fraction form
    11,558.40/17,325.18 = 4,987.68/x
  3. Step 3: Cross multiply
    11,558.40x = 17,325.18 × 4,987.68
  4. Step 4: Simplify right side
    11,558.40x = 86,412,453.78
  5. Step 5: Solve for x
    x = 86,412,453.78/11,558.40
  6. Step 6: Final answer
    x = 7,476.16

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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.