Home / 11,337.80-15,643.75-6,860.66

Finding the Fourth Proportional to 11,337.80, 15,643.75 and 6,860.66

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Solution

The fourth proportional to 11,337.80, 15,643.75 and 6,860.66 is: 9,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.80 : 15,643.75 = 6,860.66 : x
  2. Step 2: Convert to fraction form
    11,337.80/15,643.75 = 6,860.66/x
  3. Step 3: Cross multiply
    11,337.80x = 15,643.75 × 6,860.66
  4. Step 4: Simplify right side
    11,337.80x = 107,326,449.88
  5. Step 5: Solve for x
    x = 107,326,449.88/11,337.80
  6. Step 6: Final answer
    x = 9,466.25

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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.