Home / 13,955.43-19,259.57-7,988.97

Finding the Fourth Proportional to 13,955.43, 19,259.57 and 7,988.97

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Solution

The fourth proportional to 13,955.43, 19,259.57 and 7,988.97 is: 11,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.43 : 19,259.57 = 7,988.97 : x
  2. Step 2: Convert to fraction form
    13,955.43/19,259.57 = 7,988.97/x
  3. Step 3: Cross multiply
    13,955.43x = 19,259.57 × 7,988.97
  4. Step 4: Simplify right side
    13,955.43x = 153,864,126.94
  5. Step 5: Solve for x
    x = 153,864,126.94/13,955.43
  6. Step 6: Final answer
    x = 11,025.39

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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.