Home / 10,106.32-15,158.77-3,779.99

Finding the Fourth Proportional to 10,106.32, 15,158.77 and 3,779.99

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Solution

The fourth proportional to 10,106.32, 15,158.77 and 3,779.99 is: 5,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,106.32 : 15,158.77 = 3,779.99 : x
  2. Step 2: Convert to fraction form
    10,106.32/15,158.77 = 3,779.99/x
  3. Step 3: Cross multiply
    10,106.32x = 15,158.77 × 3,779.99
  4. Step 4: Simplify right side
    10,106.32x = 57,299,999.01
  5. Step 5: Solve for x
    x = 57,299,999.01/10,106.32
  6. Step 6: Final answer
    x = 5,669.72

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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.