Home / 9,539.88-13,165.76-5,291.16

Finding the Fourth Proportional to 9,539.88, 13,165.76 and 5,291.16

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Solution

The fourth proportional to 9,539.88, 13,165.76 and 5,291.16 is: 7,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,539.88 : 13,165.76 = 5,291.16 : x
  2. Step 2: Convert to fraction form
    9,539.88/13,165.76 = 5,291.16/x
  3. Step 3: Cross multiply
    9,539.88x = 13,165.76 × 5,291.16
  4. Step 4: Simplify right side
    9,539.88x = 69,662,142.68
  5. Step 5: Solve for x
    x = 69,662,142.68/9,539.88
  6. Step 6: Final answer
    x = 7,302.20

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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.