Home / 13,240.84-18,272.28-7,651.84

Finding the Fourth Proportional to 13,240.84, 18,272.28 and 7,651.84

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Solution

The fourth proportional to 13,240.84, 18,272.28 and 7,651.84 is: 10,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.84 : 18,272.28 = 7,651.84 : x
  2. Step 2: Convert to fraction form
    13,240.84/18,272.28 = 7,651.84/x
  3. Step 3: Cross multiply
    13,240.84x = 18,272.28 × 7,651.84
  4. Step 4: Simplify right side
    13,240.84x = 139,816,563.00
  5. Step 5: Solve for x
    x = 139,816,563.00/13,240.84
  6. Step 6: Final answer
    x = 10,559.49

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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.