Home / 13,310.73-18,368.81-7,342.41

Finding the Fourth Proportional to 13,310.73, 18,368.81 and 7,342.41

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Solution

The fourth proportional to 13,310.73, 18,368.81 and 7,342.41 is: 10,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.73 : 18,368.81 = 7,342.41 : x
  2. Step 2: Convert to fraction form
    13,310.73/18,368.81 = 7,342.41/x
  3. Step 3: Cross multiply
    13,310.73x = 18,368.81 × 7,342.41
  4. Step 4: Simplify right side
    13,310.73x = 134,871,393.94
  5. Step 5: Solve for x
    x = 134,871,393.94/13,310.73
  6. Step 6: Final answer
    x = 10,132.53

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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.