Home / 10,664.29-14,708.64-6,415.03

Finding the Fourth Proportional to 10,664.29, 14,708.64 and 6,415.03

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Solution

The fourth proportional to 10,664.29, 14,708.64 and 6,415.03 is: 8,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.29 : 14,708.64 = 6,415.03 : x
  2. Step 2: Convert to fraction form
    10,664.29/14,708.64 = 6,415.03/x
  3. Step 3: Cross multiply
    10,664.29x = 14,708.64 × 6,415.03
  4. Step 4: Simplify right side
    10,664.29x = 94,356,387.59
  5. Step 5: Solve for x
    x = 94,356,387.59/10,664.29
  6. Step 6: Final answer
    x = 8,847.88

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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.