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Finding the Fourth Proportional to 13,425.06, 18,526.07 and 7,457.11

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Solution

The fourth proportional to 13,425.06, 18,526.07 and 7,457.11 is: 10,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.06 : 18,526.07 = 7,457.11 : x
  2. Step 2: Convert to fraction form
    13,425.06/18,526.07 = 7,457.11/x
  3. Step 3: Cross multiply
    13,425.06x = 18,526.07 × 7,457.11
  4. Step 4: Simplify right side
    13,425.06x = 138,150,923.21
  5. Step 5: Solve for x
    x = 138,150,923.21/13,425.06
  6. Step 6: Final answer
    x = 10,290.52

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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.