Home / 9,988.14-13,779.36-6,006.90

Finding the Fourth Proportional to 9,988.14, 13,779.36 and 6,006.90

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Solution

The fourth proportional to 9,988.14, 13,779.36 and 6,006.90 is: 8,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.14 : 13,779.36 = 6,006.90 : x
  2. Step 2: Convert to fraction form
    9,988.14/13,779.36 = 6,006.90/x
  3. Step 3: Cross multiply
    9,988.14x = 13,779.36 × 6,006.90
  4. Step 4: Simplify right side
    9,988.14x = 82,771,237.58
  5. Step 5: Solve for x
    x = 82,771,237.58/9,988.14
  6. Step 6: Final answer
    x = 8,286.95

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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.