Home / 13,491.36-18,618.05-7,523.28

Finding the Fourth Proportional to 13,491.36, 18,618.05 and 7,523.28

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Solution

The fourth proportional to 13,491.36, 18,618.05 and 7,523.28 is: 10,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.36 : 18,618.05 = 7,523.28 : x
  2. Step 2: Convert to fraction form
    13,491.36/18,618.05 = 7,523.28/x
  3. Step 3: Cross multiply
    13,491.36x = 18,618.05 × 7,523.28
  4. Step 4: Simplify right side
    13,491.36x = 140,068,822.01
  5. Step 5: Solve for x
    x = 140,068,822.01/13,491.36
  6. Step 6: Final answer
    x = 10,382.11

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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.