Home / 8,970.81-13,455.68-3,347.39

Finding the Fourth Proportional to 8,970.81, 13,455.68 and 3,347.39

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Solution

The fourth proportional to 8,970.81, 13,455.68 and 3,347.39 is: 5,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.81 : 13,455.68 = 3,347.39 : x
  2. Step 2: Convert to fraction form
    8,970.81/13,455.68 = 3,347.39/x
  3. Step 3: Cross multiply
    8,970.81x = 13,455.68 × 3,347.39
  4. Step 4: Simplify right side
    8,970.81x = 45,041,408.68
  5. Step 5: Solve for x
    x = 45,041,408.68/8,970.81
  6. Step 6: Final answer
    x = 5,020.89

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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.