Home / 9,988.44-13,779.85-6,633.07

Finding the Fourth Proportional to 9,988.44, 13,779.85 and 6,633.07

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Solution

The fourth proportional to 9,988.44, 13,779.85 and 6,633.07 is: 9,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.44 : 13,779.85 = 6,633.07 : x
  2. Step 2: Convert to fraction form
    9,988.44/13,779.85 = 6,633.07/x
  3. Step 3: Cross multiply
    9,988.44x = 13,779.85 × 6,633.07
  4. Step 4: Simplify right side
    9,988.44x = 91,402,709.64
  5. Step 5: Solve for x
    x = 91,402,709.64/9,988.44
  6. Step 6: Final answer
    x = 9,150.85

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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.