Home / 10,664.40-16,008.24-4,428.80

Finding the Fourth Proportional to 10,664.40, 16,008.24 and 4,428.80

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Solution

The fourth proportional to 10,664.40, 16,008.24 and 4,428.80 is: 6,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.40 : 16,008.24 = 4,428.80 : x
  2. Step 2: Convert to fraction form
    10,664.40/16,008.24 = 4,428.80/x
  3. Step 3: Cross multiply
    10,664.40x = 16,008.24 × 4,428.80
  4. Step 4: Simplify right side
    10,664.40x = 70,897,293.31
  5. Step 5: Solve for x
    x = 70,897,293.31/10,664.40
  6. Step 6: Final answer
    x = 6,648.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.