Home / 9,123.36-13,688.75-3,280.42

Finding the Fourth Proportional to 9,123.36, 13,688.75 and 3,280.42

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Solution

The fourth proportional to 9,123.36, 13,688.75 and 3,280.42 is: 4,921.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.36 : 13,688.75 = 3,280.42 : x
  2. Step 2: Convert to fraction form
    9,123.36/13,688.75 = 3,280.42/x
  3. Step 3: Cross multiply
    9,123.36x = 13,688.75 × 3,280.42
  4. Step 4: Simplify right side
    9,123.36x = 44,904,849.28
  5. Step 5: Solve for x
    x = 44,904,849.28/9,123.36
  6. Step 6: Final answer
    x = 4,921.96

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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.