Home / 25,278.84-37,917.18-8,640.36

Finding the Fourth Proportional to 25,278.84, 37,917.18 and 8,640.36

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Solution

The fourth proportional to 25,278.84, 37,917.18 and 8,640.36 is: 12,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278.84 : 37,917.18 = 8,640.36 : x
  2. Step 2: Convert to fraction form
    25,278.84/37,917.18 = 8,640.36/x
  3. Step 3: Cross multiply
    25,278.84x = 37,917.18 × 8,640.36
  4. Step 4: Simplify right side
    25,278.84x = 327,618,085.38
  5. Step 5: Solve for x
    x = 327,618,085.38/25,278.84
  6. Step 6: Final answer
    x = 12,960.17

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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.