Home / 18,437.58-27,653.34-7,909.32

Finding the Fourth Proportional to 18,437.58, 27,653.34 and 7,909.32

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Solution

The fourth proportional to 18,437.58, 27,653.34 and 7,909.32 is: 11,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.58 : 27,653.34 = 7,909.32 : x
  2. Step 2: Convert to fraction form
    18,437.58/27,653.34 = 7,909.32/x
  3. Step 3: Cross multiply
    18,437.58x = 27,653.34 × 7,909.32
  4. Step 4: Simplify right side
    18,437.58x = 218,719,115.13
  5. Step 5: Solve for x
    x = 218,719,115.13/18,437.58
  6. Step 6: Final answer
    x = 11,862.68

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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.