Home / 13,838.36-20,749.80-9,461.12

Finding the Fourth Proportional to 13,838.36, 20,749.80 and 9,461.12

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Solution

The fourth proportional to 13,838.36, 20,749.80 and 9,461.12 is: 14,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.36 : 20,749.80 = 9,461.12 : x
  2. Step 2: Convert to fraction form
    13,838.36/20,749.80 = 9,461.12/x
  3. Step 3: Cross multiply
    13,838.36x = 20,749.80 × 9,461.12
  4. Step 4: Simplify right side
    13,838.36x = 196,316,347.78
  5. Step 5: Solve for x
    x = 196,316,347.78/13,838.36
  6. Step 6: Final answer
    x = 14,186.39

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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.