Home / 10,666.32-16,001.30-4,745.31

Finding the Fourth Proportional to 10,666.32, 16,001.30 and 4,745.31

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Solution

The fourth proportional to 10,666.32, 16,001.30 and 4,745.31 is: 7,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.32 : 16,001.30 = 4,745.31 : x
  2. Step 2: Convert to fraction form
    10,666.32/16,001.30 = 4,745.31/x
  3. Step 3: Cross multiply
    10,666.32x = 16,001.30 × 4,745.31
  4. Step 4: Simplify right side
    10,666.32x = 75,931,128.90
  5. Step 5: Solve for x
    x = 75,931,128.90/10,666.32
  6. Step 6: Final answer
    x = 7,118.77

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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.