Home / 11,165.04-15,407.24-6,686.20

Finding the Fourth Proportional to 11,165.04, 15,407.24 and 6,686.20

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Solution

The fourth proportional to 11,165.04, 15,407.24 and 6,686.20 is: 9,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.04 : 15,407.24 = 6,686.20 : x
  2. Step 2: Convert to fraction form
    11,165.04/15,407.24 = 6,686.20/x
  3. Step 3: Cross multiply
    11,165.04x = 15,407.24 × 6,686.20
  4. Step 4: Simplify right side
    11,165.04x = 103,015,888.09
  5. Step 5: Solve for x
    x = 103,015,888.09/11,165.04
  6. Step 6: Final answer
    x = 9,226.65

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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.