Home / 18,567.90-27,865.44-11,558.16

Finding the Fourth Proportional to 18,567.90, 27,865.44 and 11,558.16

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Solution

The fourth proportional to 18,567.90, 27,865.44 and 11,558.16 is: 17,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.90 : 27,865.44 = 11,558.16 : x
  2. Step 2: Convert to fraction form
    18,567.90/27,865.44 = 11,558.16/x
  3. Step 3: Cross multiply
    18,567.90x = 27,865.44 × 11,558.16
  4. Step 4: Simplify right side
    18,567.90x = 322,073,213.99
  5. Step 5: Solve for x
    x = 322,073,213.99/18,567.90
  6. Step 6: Final answer
    x = 17,345.70

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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.