Home / 9,781.64-13,495.12-6,426.26

Finding the Fourth Proportional to 9,781.64, 13,495.12 and 6,426.26

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Solution

The fourth proportional to 9,781.64, 13,495.12 and 6,426.26 is: 8,865.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.64 : 13,495.12 = 6,426.26 : x
  2. Step 2: Convert to fraction form
    9,781.64/13,495.12 = 6,426.26/x
  3. Step 3: Cross multiply
    9,781.64x = 13,495.12 × 6,426.26
  4. Step 4: Simplify right side
    9,781.64x = 86,723,149.85
  5. Step 5: Solve for x
    x = 86,723,149.85/9,781.64
  6. Step 6: Final answer
    x = 8,865.91

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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.