Home / 9,609.64-13,260.90-5,418.28

Finding the Fourth Proportional to 9,609.64, 13,260.90 and 5,418.28

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Solution

The fourth proportional to 9,609.64, 13,260.90 and 5,418.28 is: 7,477.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,609.64 : 13,260.90 = 5,418.28 : x
  2. Step 2: Convert to fraction form
    9,609.64/13,260.90 = 5,418.28/x
  3. Step 3: Cross multiply
    9,609.64x = 13,260.90 × 5,418.28
  4. Step 4: Simplify right side
    9,609.64x = 71,851,269.25
  5. Step 5: Solve for x
    x = 71,851,269.25/9,609.64
  6. Step 6: Final answer
    x = 7,477.00

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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.