Home / 11,338.72-15,646.80-6,370.72

Finding the Fourth Proportional to 11,338.72, 15,646.80 and 6,370.72

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Solution

The fourth proportional to 11,338.72, 15,646.80 and 6,370.72 is: 8,791.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,338.72 : 15,646.80 = 6,370.72 : x
  2. Step 2: Convert to fraction form
    11,338.72/15,646.80 = 6,370.72/x
  3. Step 3: Cross multiply
    11,338.72x = 15,646.80 × 6,370.72
  4. Step 4: Simplify right side
    11,338.72x = 99,681,381.70
  5. Step 5: Solve for x
    x = 99,681,381.70/11,338.72
  6. Step 6: Final answer
    x = 8,791.24

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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.