Home / 10,669.04-16,003.60-7,381.20

Finding the Fourth Proportional to 10,669.04, 16,003.60 and 7,381.20

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Solution

The fourth proportional to 10,669.04, 16,003.60 and 7,381.20 is: 11,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.04 : 16,003.60 = 7,381.20 : x
  2. Step 2: Convert to fraction form
    10,669.04/16,003.60 = 7,381.20/x
  3. Step 3: Cross multiply
    10,669.04x = 16,003.60 × 7,381.20
  4. Step 4: Simplify right side
    10,669.04x = 118,125,772.32
  5. Step 5: Solve for x
    x = 118,125,772.32/10,669.04
  6. Step 6: Final answer
    x = 11,071.83

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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.