Home / 13,064.06-18,020.19-7,755.14

Finding the Fourth Proportional to 13,064.06, 18,020.19 and 7,755.14

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Solution

The fourth proportional to 13,064.06, 18,020.19 and 7,755.14 is: 10,697.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.06 : 18,020.19 = 7,755.14 : x
  2. Step 2: Convert to fraction form
    13,064.06/18,020.19 = 7,755.14/x
  3. Step 3: Cross multiply
    13,064.06x = 18,020.19 × 7,755.14
  4. Step 4: Simplify right side
    13,064.06x = 139,749,096.28
  5. Step 5: Solve for x
    x = 139,749,096.28/13,064.06
  6. Step 6: Final answer
    x = 10,697.22

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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.