Home / 9,165.64-12,645.04-5,185.84

Finding the Fourth Proportional to 9,165.64, 12,645.04 and 5,185.84

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Solution

The fourth proportional to 9,165.64, 12,645.04 and 5,185.84 is: 7,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.64 : 12,645.04 = 5,185.84 : x
  2. Step 2: Convert to fraction form
    9,165.64/12,645.04 = 5,185.84/x
  3. Step 3: Cross multiply
    9,165.64x = 12,645.04 × 5,185.84
  4. Step 4: Simplify right side
    9,165.64x = 65,575,154.23
  5. Step 5: Solve for x
    x = 65,575,154.23/9,165.64
  6. Step 6: Final answer
    x = 7,154.45

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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.