Home / 13,571.55-18,727.61-7,603.74

Finding the Fourth Proportional to 13,571.55, 18,727.61 and 7,603.74

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Solution

The fourth proportional to 13,571.55, 18,727.61 and 7,603.74 is: 10,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.55 : 18,727.61 = 7,603.74 : x
  2. Step 2: Convert to fraction form
    13,571.55/18,727.61 = 7,603.74/x
  3. Step 3: Cross multiply
    13,571.55x = 18,727.61 × 7,603.74
  4. Step 4: Simplify right side
    13,571.55x = 142,399,839.24
  5. Step 5: Solve for x
    x = 142,399,839.24/13,571.55
  6. Step 6: Final answer
    x = 10,492.53

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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.