Home / 10,690.71-14,754.32-6,216.54

Finding the Fourth Proportional to 10,690.71, 14,754.32 and 6,216.54

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Solution

The fourth proportional to 10,690.71, 14,754.32 and 6,216.54 is: 8,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.71 : 14,754.32 = 6,216.54 : x
  2. Step 2: Convert to fraction form
    10,690.71/14,754.32 = 6,216.54/x
  3. Step 3: Cross multiply
    10,690.71x = 14,754.32 × 6,216.54
  4. Step 4: Simplify right side
    10,690.71x = 91,720,820.45
  5. Step 5: Solve for x
    x = 91,720,820.45/10,690.71
  6. Step 6: Final answer
    x = 8,579.49

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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.