Home / 9,982.05-13,781.64-6,210.35

Finding the Fourth Proportional to 9,982.05, 13,781.64 and 6,210.35

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Solution

The fourth proportional to 9,982.05, 13,781.64 and 6,210.35 is: 8,574.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.05 : 13,781.64 = 6,210.35 : x
  2. Step 2: Convert to fraction form
    9,982.05/13,781.64 = 6,210.35/x
  3. Step 3: Cross multiply
    9,982.05x = 13,781.64 × 6,210.35
  4. Step 4: Simplify right side
    9,982.05x = 85,588,814.04
  5. Step 5: Solve for x
    x = 85,588,814.04/9,982.05
  6. Step 6: Final answer
    x = 8,574.28

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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.