Home / 13,457.58-18,570.66-7,791.92

Finding the Fourth Proportional to 13,457.58, 18,570.66 and 7,791.92

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Solution

The fourth proportional to 13,457.58, 18,570.66 and 7,791.92 is: 10,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.58 : 18,570.66 = 7,791.92 : x
  2. Step 2: Convert to fraction form
    13,457.58/18,570.66 = 7,791.92/x
  3. Step 3: Cross multiply
    13,457.58x = 18,570.66 × 7,791.92
  4. Step 4: Simplify right side
    13,457.58x = 144,701,004.21
  5. Step 5: Solve for x
    x = 144,701,004.21/13,457.58
  6. Step 6: Final answer
    x = 10,752.38

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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.