Home / 13,425.26-18,527.37-7,457.38

Finding the Fourth Proportional to 13,425.26, 18,527.37 and 7,457.38

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Solution

The fourth proportional to 13,425.26, 18,527.37 and 7,457.38 is: 10,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.26 : 18,527.37 = 7,457.38 : x
  2. Step 2: Convert to fraction form
    13,425.26/18,527.37 = 7,457.38/x
  3. Step 3: Cross multiply
    13,425.26x = 18,527.37 × 7,457.38
  4. Step 4: Simplify right side
    13,425.26x = 138,165,638.49
  5. Step 5: Solve for x
    x = 138,165,638.49/13,425.26
  6. Step 6: Final answer
    x = 10,291.47

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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.