Home / 6,988.10-9,644.94-4,005.92

Finding the Fourth Proportional to 6,988.10, 9,644.94 and 4,005.92

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Solution

The fourth proportional to 6,988.10, 9,644.94 and 4,005.92 is: 5,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.10 : 9,644.94 = 4,005.92 : x
  2. Step 2: Convert to fraction form
    6,988.10/9,644.94 = 4,005.92/x
  3. Step 3: Cross multiply
    6,988.10x = 9,644.94 × 4,005.92
  4. Step 4: Simplify right side
    6,988.10x = 38,636,882.16
  5. Step 5: Solve for x
    x = 38,636,882.16/6,988.10
  6. Step 6: Final answer
    x = 5,528.96

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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.