Home / 13,297.09-18,349.89-7,328.76

Finding the Fourth Proportional to 13,297.09, 18,349.89 and 7,328.76

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Solution

The fourth proportional to 13,297.09, 18,349.89 and 7,328.76 is: 10,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.09 : 18,349.89 = 7,328.76 : x
  2. Step 2: Convert to fraction form
    13,297.09/18,349.89 = 7,328.76/x
  3. Step 3: Cross multiply
    13,297.09x = 18,349.89 × 7,328.76
  4. Step 4: Simplify right side
    13,297.09x = 134,481,939.84
  5. Step 5: Solve for x
    x = 134,481,939.84/13,297.09
  6. Step 6: Final answer
    x = 10,113.64

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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.