Home / 25,406.96-38,114.04-7,878.26

Finding the Fourth Proportional to 25,406.96, 38,114.04 and 7,878.26

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Solution

The fourth proportional to 25,406.96, 38,114.04 and 7,878.26 is: 11,818.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,406.96 : 38,114.04 = 7,878.26 : x
  2. Step 2: Convert to fraction form
    25,406.96/38,114.04 = 7,878.26/x
  3. Step 3: Cross multiply
    25,406.96x = 38,114.04 × 7,878.26
  4. Step 4: Simplify right side
    25,406.96x = 300,272,316.77
  5. Step 5: Solve for x
    x = 300,272,316.77/25,406.96
  6. Step 6: Final answer
    x = 11,818.51

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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.