Home / 11,182.12-15,427.35-6,643.66

Finding the Fourth Proportional to 11,182.12, 15,427.35 and 6,643.66

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Solution

The fourth proportional to 11,182.12, 15,427.35 and 6,643.66 is: 9,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.12 : 15,427.35 = 6,643.66 : x
  2. Step 2: Convert to fraction form
    11,182.12/15,427.35 = 6,643.66/x
  3. Step 3: Cross multiply
    11,182.12x = 15,427.35 × 6,643.66
  4. Step 4: Simplify right side
    11,182.12x = 102,494,068.10
  5. Step 5: Solve for x
    x = 102,494,068.10/11,182.12
  6. Step 6: Final answer
    x = 9,165.89

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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.