Home / 13,133.78-18,126.21-9,595.22

Finding the Fourth Proportional to 13,133.78, 18,126.21 and 9,595.22

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Solution

The fourth proportional to 13,133.78, 18,126.21 and 9,595.22 is: 13,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.78 : 18,126.21 = 9,595.22 : x
  2. Step 2: Convert to fraction form
    13,133.78/18,126.21 = 9,595.22/x
  3. Step 3: Cross multiply
    13,133.78x = 18,126.21 × 9,595.22
  4. Step 4: Simplify right side
    13,133.78x = 173,924,972.72
  5. Step 5: Solve for x
    x = 173,924,972.72/13,133.78
  6. Step 6: Final answer
    x = 13,242.57

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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.