Home / 13,127.67-18,117.26-7,464.20

Finding the Fourth Proportional to 13,127.67, 18,117.26 and 7,464.20

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Solution

The fourth proportional to 13,127.67, 18,117.26 and 7,464.20 is: 10,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.67 : 18,117.26 = 7,464.20 : x
  2. Step 2: Convert to fraction form
    13,127.67/18,117.26 = 7,464.20/x
  3. Step 3: Cross multiply
    13,127.67x = 18,117.26 × 7,464.20
  4. Step 4: Simplify right side
    13,127.67x = 135,230,780.17
  5. Step 5: Solve for x
    x = 135,230,780.17/13,127.67
  6. Step 6: Final answer
    x = 10,301.20

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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.