Home / 9,896.10-13,656.76-5,420.26

Finding the Fourth Proportional to 9,896.10, 13,656.76 and 5,420.26

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Solution

The fourth proportional to 9,896.10, 13,656.76 and 5,420.26 is: 7,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,896.10 : 13,656.76 = 5,420.26 : x
  2. Step 2: Convert to fraction form
    9,896.10/13,656.76 = 5,420.26/x
  3. Step 3: Cross multiply
    9,896.10x = 13,656.76 × 5,420.26
  4. Step 4: Simplify right side
    9,896.10x = 74,023,189.96
  5. Step 5: Solve for x
    x = 74,023,189.96/9,896.10
  6. Step 6: Final answer
    x = 7,480.04

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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.