Home / 11,126.51-15,349.39-6,408.06

Finding the Fourth Proportional to 11,126.51, 15,349.39 and 6,408.06

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Solution

The fourth proportional to 11,126.51, 15,349.39 and 6,408.06 is: 8,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.51 : 15,349.39 = 6,408.06 : x
  2. Step 2: Convert to fraction form
    11,126.51/15,349.39 = 6,408.06/x
  3. Step 3: Cross multiply
    11,126.51x = 15,349.39 × 6,408.06
  4. Step 4: Simplify right side
    11,126.51x = 98,359,812.08
  5. Step 5: Solve for x
    x = 98,359,812.08/11,126.51
  6. Step 6: Final answer
    x = 8,840.13

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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.