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Finding the Fourth Proportional to 9,682.04, 13,349.94 and 8,982.20

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Solution

The fourth proportional to 9,682.04, 13,349.94 and 8,982.20 is: 12,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,682.04 : 13,349.94 = 8,982.20 : x
  2. Step 2: Convert to fraction form
    9,682.04/13,349.94 = 8,982.20/x
  3. Step 3: Cross multiply
    9,682.04x = 13,349.94 × 8,982.20
  4. Step 4: Simplify right side
    9,682.04x = 119,911,831.07
  5. Step 5: Solve for x
    x = 119,911,831.07/9,682.04
  6. Step 6: Final answer
    x = 12,384.98

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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.