Home / 18,670.93-25,765.89-10,287.43

Finding the Fourth Proportional to 18,670.93, 25,765.89 and 10,287.43

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Solution

The fourth proportional to 18,670.93, 25,765.89 and 10,287.43 is: 14,196.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.93 : 25,765.89 = 10,287.43 : x
  2. Step 2: Convert to fraction form
    18,670.93/25,765.89 = 10,287.43/x
  3. Step 3: Cross multiply
    18,670.93x = 25,765.89 × 10,287.43
  4. Step 4: Simplify right side
    18,670.93x = 265,064,789.76
  5. Step 5: Solve for x
    x = 265,064,789.76/18,670.93
  6. Step 6: Final answer
    x = 14,196.66

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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.