Home / 18,130.51-27,188.93-8,767.42

Finding the Fourth Proportional to 18,130.51, 27,188.93 and 8,767.42

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Solution

The fourth proportional to 18,130.51, 27,188.93 and 8,767.42 is: 13,147.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.51 : 27,188.93 = 8,767.42 : x
  2. Step 2: Convert to fraction form
    18,130.51/27,188.93 = 8,767.42/x
  3. Step 3: Cross multiply
    18,130.51x = 27,188.93 × 8,767.42
  4. Step 4: Simplify right side
    18,130.51x = 238,376,768.66
  5. Step 5: Solve for x
    x = 238,376,768.66/18,130.51
  6. Step 6: Final answer
    x = 13,147.82

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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.