Home / 13,125.24-18,113.10-7,536.60

Finding the Fourth Proportional to 13,125.24, 18,113.10 and 7,536.60

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Solution

The fourth proportional to 13,125.24, 18,113.10 and 7,536.60 is: 10,400.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.24 : 18,113.10 = 7,536.60 : x
  2. Step 2: Convert to fraction form
    13,125.24/18,113.10 = 7,536.60/x
  3. Step 3: Cross multiply
    13,125.24x = 18,113.10 × 7,536.60
  4. Step 4: Simplify right side
    13,125.24x = 136,511,189.46
  5. Step 5: Solve for x
    x = 136,511,189.46/13,125.24
  6. Step 6: Final answer
    x = 10,400.66

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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.