Home / 12,614.40-17,406.60-7,310.88

Finding the Fourth Proportional to 12,614.40, 17,406.60 and 7,310.88

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Solution

The fourth proportional to 12,614.40, 17,406.60 and 7,310.88 is: 10,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.40 : 17,406.60 = 7,310.88 : x
  2. Step 2: Convert to fraction form
    12,614.40/17,406.60 = 7,310.88/x
  3. Step 3: Cross multiply
    12,614.40x = 17,406.60 × 7,310.88
  4. Step 4: Simplify right side
    12,614.40x = 127,257,563.81
  5. Step 5: Solve for x
    x = 127,257,563.81/12,614.40
  6. Step 6: Final answer
    x = 10,088.28

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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.