Home / 11,888.12-16,405.63-6,437.25

Finding the Fourth Proportional to 11,888.12, 16,405.63 and 6,437.25

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Solution

The fourth proportional to 11,888.12, 16,405.63 and 6,437.25 is: 8,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.12 : 16,405.63 = 6,437.25 : x
  2. Step 2: Convert to fraction form
    11,888.12/16,405.63 = 6,437.25/x
  3. Step 3: Cross multiply
    11,888.12x = 16,405.63 × 6,437.25
  4. Step 4: Simplify right side
    11,888.12x = 105,607,189.87
  5. Step 5: Solve for x
    x = 105,607,189.87/11,888.12
  6. Step 6: Final answer
    x = 8,883.42

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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.