Home / 10,399.46-15,576.59-6,451.68

Finding the Fourth Proportional to 10,399.46, 15,576.59 and 6,451.68

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Solution

The fourth proportional to 10,399.46, 15,576.59 and 6,451.68 is: 9,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.46 : 15,576.59 = 6,451.68 : x
  2. Step 2: Convert to fraction form
    10,399.46/15,576.59 = 6,451.68/x
  3. Step 3: Cross multiply
    10,399.46x = 15,576.59 × 6,451.68
  4. Step 4: Simplify right side
    10,399.46x = 100,495,141.91
  5. Step 5: Solve for x
    x = 100,495,141.91/10,399.46
  6. Step 6: Final answer
    x = 9,663.50

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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.