Home / 18,837.15-25,985.45-11,175.96

Finding the Fourth Proportional to 18,837.15, 25,985.45 and 11,175.96

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Solution

The fourth proportional to 18,837.15, 25,985.45 and 11,175.96 is: 15,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.15 : 25,985.45 = 11,175.96 : x
  2. Step 2: Convert to fraction form
    18,837.15/25,985.45 = 11,175.96/x
  3. Step 3: Cross multiply
    18,837.15x = 25,985.45 × 11,175.96
  4. Step 4: Simplify right side
    18,837.15x = 290,412,349.78
  5. Step 5: Solve for x
    x = 290,412,349.78/18,837.15
  6. Step 6: Final answer
    x = 15,417.00

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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.