Home / 19,499.40-26,901.96-12,788.75

Finding the Fourth Proportional to 19,499.40, 26,901.96 and 12,788.75

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Solution

The fourth proportional to 19,499.40, 26,901.96 and 12,788.75 is: 17,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,499.40 : 26,901.96 = 12,788.75 : x
  2. Step 2: Convert to fraction form
    19,499.40/26,901.96 = 12,788.75/x
  3. Step 3: Cross multiply
    19,499.40x = 26,901.96 × 12,788.75
  4. Step 4: Simplify right side
    19,499.40x = 344,042,460.25
  5. Step 5: Solve for x
    x = 344,042,460.25/19,499.40
  6. Step 6: Final answer
    x = 17,643.75

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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.