Home / 9,180.60-12,669.24-5,403.77

Finding the Fourth Proportional to 9,180.60, 12,669.24 and 5,403.77

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Solution

The fourth proportional to 9,180.60, 12,669.24 and 5,403.77 is: 7,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.60 : 12,669.24 = 5,403.77 : x
  2. Step 2: Convert to fraction form
    9,180.60/12,669.24 = 5,403.77/x
  3. Step 3: Cross multiply
    9,180.60x = 12,669.24 × 5,403.77
  4. Step 4: Simplify right side
    9,180.60x = 68,461,659.03
  5. Step 5: Solve for x
    x = 68,461,659.03/9,180.60
  6. Step 6: Final answer
    x = 7,457.21

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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.