Home / 11,457.45-15,812.01-7,489.26

Finding the Fourth Proportional to 11,457.45, 15,812.01 and 7,489.26

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Solution

The fourth proportional to 11,457.45, 15,812.01 and 7,489.26 is: 10,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,457.45 : 15,812.01 = 7,489.26 : x
  2. Step 2: Convert to fraction form
    11,457.45/15,812.01 = 7,489.26/x
  3. Step 3: Cross multiply
    11,457.45x = 15,812.01 × 7,489.26
  4. Step 4: Simplify right side
    11,457.45x = 118,420,254.01
  5. Step 5: Solve for x
    x = 118,420,254.01/11,457.45
  6. Step 6: Final answer
    x = 10,335.66

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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.