Home / 11,176.71-15,425.42-7,457.19

Finding the Fourth Proportional to 11,176.71, 15,425.42 and 7,457.19

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Solution

The fourth proportional to 11,176.71, 15,425.42 and 7,457.19 is: 10,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.71 : 15,425.42 = 7,457.19 : x
  2. Step 2: Convert to fraction form
    11,176.71/15,425.42 = 7,457.19/x
  3. Step 3: Cross multiply
    11,176.71x = 15,425.42 × 7,457.19
  4. Step 4: Simplify right side
    11,176.71x = 115,030,250.48
  5. Step 5: Solve for x
    x = 115,030,250.48/11,176.71
  6. Step 6: Final answer
    x = 10,291.96

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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.