Home / 13,727.17-18,943.49-7,439.55

Finding the Fourth Proportional to 13,727.17, 18,943.49 and 7,439.55

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Solution

The fourth proportional to 13,727.17, 18,943.49 and 7,439.55 is: 10,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.17 : 18,943.49 = 7,439.55 : x
  2. Step 2: Convert to fraction form
    13,727.17/18,943.49 = 7,439.55/x
  3. Step 3: Cross multiply
    13,727.17x = 18,943.49 × 7,439.55
  4. Step 4: Simplify right side
    13,727.17x = 140,931,041.03
  5. Step 5: Solve for x
    x = 140,931,041.03/13,727.17
  6. Step 6: Final answer
    x = 10,266.58

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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.