Home / 10,223.25-14,102.31-6,439.92

Finding the Fourth Proportional to 10,223.25, 14,102.31 and 6,439.92

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Solution

The fourth proportional to 10,223.25, 14,102.31 and 6,439.92 is: 8,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,223.25 : 14,102.31 = 6,439.92 : x
  2. Step 2: Convert to fraction form
    10,223.25/14,102.31 = 6,439.92/x
  3. Step 3: Cross multiply
    10,223.25x = 14,102.31 × 6,439.92
  4. Step 4: Simplify right side
    10,223.25x = 90,817,748.22
  5. Step 5: Solve for x
    x = 90,817,748.22/10,223.25
  6. Step 6: Final answer
    x = 8,883.45

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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.