Home / 13,457.32-18,571.22-7,489.24

Finding the Fourth Proportional to 13,457.32, 18,571.22 and 7,489.24

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Solution

The fourth proportional to 13,457.32, 18,571.22 and 7,489.24 is: 10,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.32 : 18,571.22 = 7,489.24 : x
  2. Step 2: Convert to fraction form
    13,457.32/18,571.22 = 7,489.24/x
  3. Step 3: Cross multiply
    13,457.32x = 18,571.22 × 7,489.24
  4. Step 4: Simplify right side
    13,457.32x = 139,084,323.67
  5. Step 5: Solve for x
    x = 139,084,323.67/13,457.32
  6. Step 6: Final answer
    x = 10,335.22

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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.