Home / 8,461.72-11,673.18-5,478.52

Finding the Fourth Proportional to 8,461.72, 11,673.18 and 5,478.52

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Solution

The fourth proportional to 8,461.72, 11,673.18 and 5,478.52 is: 7,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.72 : 11,673.18 = 5,478.52 : x
  2. Step 2: Convert to fraction form
    8,461.72/11,673.18 = 5,478.52/x
  3. Step 3: Cross multiply
    8,461.72x = 11,673.18 × 5,478.52
  4. Step 4: Simplify right side
    8,461.72x = 63,951,750.09
  5. Step 5: Solve for x
    x = 63,951,750.09/8,461.72
  6. Step 6: Final answer
    x = 7,557.77

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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.