Home / 13,457.76-18,571.50-7,490.04

Finding the Fourth Proportional to 13,457.76, 18,571.50 and 7,490.04

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Solution

The fourth proportional to 13,457.76, 18,571.50 and 7,490.04 is: 10,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.76 : 18,571.50 = 7,490.04 : x
  2. Step 2: Convert to fraction form
    13,457.76/18,571.50 = 7,490.04/x
  3. Step 3: Cross multiply
    13,457.76x = 18,571.50 × 7,490.04
  4. Step 4: Simplify right side
    13,457.76x = 139,101,277.86
  5. Step 5: Solve for x
    x = 139,101,277.86/13,457.76
  6. Step 6: Final answer
    x = 10,336.14

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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.