Home / 8,645.27-11,931.62-4,869.18

Finding the Fourth Proportional to 8,645.27, 11,931.62 and 4,869.18

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Solution

The fourth proportional to 8,645.27, 11,931.62 and 4,869.18 is: 6,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.27 : 11,931.62 = 4,869.18 : x
  2. Step 2: Convert to fraction form
    8,645.27/11,931.62 = 4,869.18/x
  3. Step 3: Cross multiply
    8,645.27x = 11,931.62 × 4,869.18
  4. Step 4: Simplify right side
    8,645.27x = 58,097,181.13
  5. Step 5: Solve for x
    x = 58,097,181.13/8,645.27
  6. Step 6: Final answer
    x = 6,720.12

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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.