Home / 25,415.96-38,129.03-8,776.60

Finding the Fourth Proportional to 25,415.96, 38,129.03 and 8,776.60

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Solution

The fourth proportional to 25,415.96, 38,129.03 and 8,776.60 is: 13,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.96 : 38,129.03 = 8,776.60 : x
  2. Step 2: Convert to fraction form
    25,415.96/38,129.03 = 8,776.60/x
  3. Step 3: Cross multiply
    25,415.96x = 38,129.03 × 8,776.60
  4. Step 4: Simplify right side
    25,415.96x = 334,643,138.40
  5. Step 5: Solve for x
    x = 334,643,138.40/25,415.96
  6. Step 6: Final answer
    x = 13,166.66

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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.