Home / 13,943.56-19,242.05-7,975.22

Finding the Fourth Proportional to 13,943.56, 19,242.05 and 7,975.22

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Solution

The fourth proportional to 13,943.56, 19,242.05 and 7,975.22 is: 11,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.56 : 19,242.05 = 7,975.22 : x
  2. Step 2: Convert to fraction form
    13,943.56/19,242.05 = 7,975.22/x
  3. Step 3: Cross multiply
    13,943.56x = 19,242.05 × 7,975.22
  4. Step 4: Simplify right side
    13,943.56x = 153,459,485.79
  5. Step 5: Solve for x
    x = 153,459,485.79/13,943.56
  6. Step 6: Final answer
    x = 11,005.76

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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.