Home / 9,124.54-13,688.25-3,931.90

Finding the Fourth Proportional to 9,124.54, 13,688.25 and 3,931.90

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Solution

The fourth proportional to 9,124.54, 13,688.25 and 3,931.90 is: 5,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.54 : 13,688.25 = 3,931.90 : x
  2. Step 2: Convert to fraction form
    9,124.54/13,688.25 = 3,931.90/x
  3. Step 3: Cross multiply
    9,124.54x = 13,688.25 × 3,931.90
  4. Step 4: Simplify right side
    9,124.54x = 53,820,830.18
  5. Step 5: Solve for x
    x = 53,820,830.18/9,124.54
  6. Step 6: Final answer
    x = 5,898.47

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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.