Home / 8,970.28-13,455.44-4,289.19

Finding the Fourth Proportional to 8,970.28, 13,455.44 and 4,289.19

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Solution

The fourth proportional to 8,970.28, 13,455.44 and 4,289.19 is: 6,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.28 : 13,455.44 = 4,289.19 : x
  2. Step 2: Convert to fraction form
    8,970.28/13,455.44 = 4,289.19/x
  3. Step 3: Cross multiply
    8,970.28x = 13,455.44 × 4,289.19
  4. Step 4: Simplify right side
    8,970.28x = 57,712,938.69
  5. Step 5: Solve for x
    x = 57,712,938.69/8,970.28
  6. Step 6: Final answer
    x = 6,433.79

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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.