Home / 9,110.56-13,670.16-5,420.08

Finding the Fourth Proportional to 9,110.56, 13,670.16 and 5,420.08

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Solution

The fourth proportional to 9,110.56, 13,670.16 and 5,420.08 is: 8,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.56 : 13,670.16 = 5,420.08 : x
  2. Step 2: Convert to fraction form
    9,110.56/13,670.16 = 5,420.08/x
  3. Step 3: Cross multiply
    9,110.56x = 13,670.16 × 5,420.08
  4. Step 4: Simplify right side
    9,110.56x = 74,093,360.81
  5. Step 5: Solve for x
    x = 74,093,360.81/9,110.56
  6. Step 6: Final answer
    x = 8,132.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.