Home / 17,378.45-26,047.51-7,998.78

Finding the Fourth Proportional to 17,378.45, 26,047.51 and 7,998.78

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Solution

The fourth proportional to 17,378.45, 26,047.51 and 7,998.78 is: 11,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.45 : 26,047.51 = 7,998.78 : x
  2. Step 2: Convert to fraction form
    17,378.45/26,047.51 = 7,998.78/x
  3. Step 3: Cross multiply
    17,378.45x = 26,047.51 × 7,998.78
  4. Step 4: Simplify right side
    17,378.45x = 208,348,282.04
  5. Step 5: Solve for x
    x = 208,348,282.04/17,378.45
  6. Step 6: Final answer
    x = 11,988.89

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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.