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Finding the Fourth Proportional to 6,970.65, 9,632.69 and 5,289.09

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Solution

The fourth proportional to 6,970.65, 9,632.69 and 5,289.09 is: 7,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.65 : 9,632.69 = 5,289.09 : x
  2. Step 2: Convert to fraction form
    6,970.65/9,632.69 = 5,289.09/x
  3. Step 3: Cross multiply
    6,970.65x = 9,632.69 × 5,289.09
  4. Step 4: Simplify right side
    6,970.65x = 50,948,164.35
  5. Step 5: Solve for x
    x = 50,948,164.35/6,970.65
  6. Step 6: Final answer
    x = 7,308.95

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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.