Home / 13,243.11-18,275.43-7,937.94

Finding the Fourth Proportional to 13,243.11, 18,275.43 and 7,937.94

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Solution

The fourth proportional to 13,243.11, 18,275.43 and 7,937.94 is: 10,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.11 : 18,275.43 = 7,937.94 : x
  2. Step 2: Convert to fraction form
    13,243.11/18,275.43 = 7,937.94/x
  3. Step 3: Cross multiply
    13,243.11x = 18,275.43 × 7,937.94
  4. Step 4: Simplify right side
    13,243.11x = 145,069,266.81
  5. Step 5: Solve for x
    x = 145,069,266.81/13,243.11
  6. Step 6: Final answer
    x = 10,954.32

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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.