Home / 12,777.01-19,174.32-4,457.09

Finding the Fourth Proportional to 12,777.01, 19,174.32 and 4,457.09

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Solution

The fourth proportional to 12,777.01, 19,174.32 and 4,457.09 is: 6,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.01 : 19,174.32 = 4,457.09 : x
  2. Step 2: Convert to fraction form
    12,777.01/19,174.32 = 4,457.09/x
  3. Step 3: Cross multiply
    12,777.01x = 19,174.32 × 4,457.09
  4. Step 4: Simplify right side
    12,777.01x = 85,461,717.86
  5. Step 5: Solve for x
    x = 85,461,717.86/12,777.01
  6. Step 6: Final answer
    x = 6,688.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.