Home / 11,426.57-15,768.59-6,646.61

Finding the Fourth Proportional to 11,426.57, 15,768.59 and 6,646.61

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Solution

The fourth proportional to 11,426.57, 15,768.59 and 6,646.61 is: 9,172.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.57 : 15,768.59 = 6,646.61 : x
  2. Step 2: Convert to fraction form
    11,426.57/15,768.59 = 6,646.61/x
  3. Step 3: Cross multiply
    11,426.57x = 15,768.59 × 6,646.61
  4. Step 4: Simplify right side
    11,426.57x = 104,807,711.56
  5. Step 5: Solve for x
    x = 104,807,711.56/11,426.57
  6. Step 6: Final answer
    x = 9,172.28

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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.