Home / 14,512.30-21,756.57-6,715.78

Finding the Fourth Proportional to 14,512.30, 21,756.57 and 6,715.78

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Solution

The fourth proportional to 14,512.30, 21,756.57 and 6,715.78 is: 10,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.30 : 21,756.57 = 6,715.78 : x
  2. Step 2: Convert to fraction form
    14,512.30/21,756.57 = 6,715.78/x
  3. Step 3: Cross multiply
    14,512.30x = 21,756.57 × 6,715.78
  4. Step 4: Simplify right side
    14,512.30x = 146,112,337.67
  5. Step 5: Solve for x
    x = 146,112,337.67/14,512.30
  6. Step 6: Final answer
    x = 10,068.17

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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.