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Finding the Fourth Proportional to 25,168.86, 37,750.86 and 7,638.84

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Solution

The fourth proportional to 25,168.86, 37,750.86 and 7,638.84 is: 11,457.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,168.86 : 37,750.86 = 7,638.84 : x
  2. Step 2: Convert to fraction form
    25,168.86/37,750.86 = 7,638.84/x
  3. Step 3: Cross multiply
    25,168.86x = 37,750.86 × 7,638.84
  4. Step 4: Simplify right side
    25,168.86x = 288,372,779.40
  5. Step 5: Solve for x
    x = 288,372,779.40/25,168.86
  6. Step 6: Final answer
    x = 11,457.52

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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.