Home / 13,050.25-18,003.36-7,743.13

Finding the Fourth Proportional to 13,050.25, 18,003.36 and 7,743.13

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Solution

The fourth proportional to 13,050.25, 18,003.36 and 7,743.13 is: 10,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,050.25 : 18,003.36 = 7,743.13 : x
  2. Step 2: Convert to fraction form
    13,050.25/18,003.36 = 7,743.13/x
  3. Step 3: Cross multiply
    13,050.25x = 18,003.36 × 7,743.13
  4. Step 4: Simplify right side
    13,050.25x = 139,402,340.95
  5. Step 5: Solve for x
    x = 139,402,340.95/13,050.25
  6. Step 6: Final answer
    x = 10,681.97

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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.