Home / 13,126.05-18,114.40-7,461.03

Finding the Fourth Proportional to 13,126.05, 18,114.40 and 7,461.03

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Solution

The fourth proportional to 13,126.05, 18,114.40 and 7,461.03 is: 10,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.05 : 18,114.40 = 7,461.03 : x
  2. Step 2: Convert to fraction form
    13,126.05/18,114.40 = 7,461.03/x
  3. Step 3: Cross multiply
    13,126.05x = 18,114.40 × 7,461.03
  4. Step 4: Simplify right side
    13,126.05x = 135,152,127.12
  5. Step 5: Solve for x
    x = 135,152,127.12/13,126.05
  6. Step 6: Final answer
    x = 10,296.48

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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.