Home / 14,864.78-20,512.64-8,576.76

Finding the Fourth Proportional to 14,864.78, 20,512.64 and 8,576.76

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Solution

The fourth proportional to 14,864.78, 20,512.64 and 8,576.76 is: 11,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,864.78 : 20,512.64 = 8,576.76 : x
  2. Step 2: Convert to fraction form
    14,864.78/20,512.64 = 8,576.76/x
  3. Step 3: Cross multiply
    14,864.78x = 20,512.64 × 8,576.76
  4. Step 4: Simplify right side
    14,864.78x = 175,931,990.25
  5. Step 5: Solve for x
    x = 175,931,990.25/14,864.78
  6. Step 6: Final answer
    x = 11,835.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.