Home / 11,401.02-17,101.80-6,458.40

Finding the Fourth Proportional to 11,401.02, 17,101.80 and 6,458.40

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Solution

The fourth proportional to 11,401.02, 17,101.80 and 6,458.40 is: 9,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,401.02 : 17,101.80 = 6,458.40 : x
  2. Step 2: Convert to fraction form
    11,401.02/17,101.80 = 6,458.40/x
  3. Step 3: Cross multiply
    11,401.02x = 17,101.80 × 6,458.40
  4. Step 4: Simplify right side
    11,401.02x = 110,450,265.12
  5. Step 5: Solve for x
    x = 110,450,265.12/11,401.02
  6. Step 6: Final answer
    x = 9,687.75

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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.