Home / 10,128.40-13,973.24-6,349.96

Finding the Fourth Proportional to 10,128.40, 13,973.24 and 6,349.96

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Solution

The fourth proportional to 10,128.40, 13,973.24 and 6,349.96 is: 8,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.40 : 13,973.24 = 6,349.96 : x
  2. Step 2: Convert to fraction form
    10,128.40/13,973.24 = 6,349.96/x
  3. Step 3: Cross multiply
    10,128.40x = 13,973.24 × 6,349.96
  4. Step 4: Simplify right side
    10,128.40x = 88,729,515.07
  5. Step 5: Solve for x
    x = 88,729,515.07/10,128.40
  6. Step 6: Final answer
    x = 8,760.47

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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.