Home / 13,151.19-18,147.94-7,701.92

Finding the Fourth Proportional to 13,151.19, 18,147.94 and 7,701.92

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Solution

The fourth proportional to 13,151.19, 18,147.94 and 7,701.92 is: 10,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.19 : 18,147.94 = 7,701.92 : x
  2. Step 2: Convert to fraction form
    13,151.19/18,147.94 = 7,701.92/x
  3. Step 3: Cross multiply
    13,151.19x = 18,147.94 × 7,701.92
  4. Step 4: Simplify right side
    13,151.19x = 139,773,982.04
  5. Step 5: Solve for x
    x = 139,773,982.04/13,151.19
  6. Step 6: Final answer
    x = 10,628.24

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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.