Home / 25,896.84-38,840.93-7,178.76

Finding the Fourth Proportional to 25,896.84, 38,840.93 and 7,178.76

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Solution

The fourth proportional to 25,896.84, 38,840.93 and 7,178.76 is: 10,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,896.84 : 38,840.93 = 7,178.76 : x
  2. Step 2: Convert to fraction form
    25,896.84/38,840.93 = 7,178.76/x
  3. Step 3: Cross multiply
    25,896.84x = 38,840.93 × 7,178.76
  4. Step 4: Simplify right side
    25,896.84x = 278,829,678.75
  5. Step 5: Solve for x
    x = 278,829,678.75/25,896.84
  6. Step 6: Final answer
    x = 10,766.94

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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.