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Finding the Fourth Proportional to 7,007.99, 9,689.49 and 6,698.17

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Solution

The fourth proportional to 7,007.99, 9,689.49 and 6,698.17 is: 9,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.99 : 9,689.49 = 6,698.17 : x
  2. Step 2: Convert to fraction form
    7,007.99/9,689.49 = 6,698.17/x
  3. Step 3: Cross multiply
    7,007.99x = 9,689.49 × 6,698.17
  4. Step 4: Simplify right side
    7,007.99x = 64,901,769.30
  5. Step 5: Solve for x
    x = 64,901,769.30/7,007.99
  6. Step 6: Final answer
    x = 9,261.11

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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.