Home / 8,378.48-11,562.93-5,729.46

Finding the Fourth Proportional to 8,378.48, 11,562.93 and 5,729.46

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Solution

The fourth proportional to 8,378.48, 11,562.93 and 5,729.46 is: 7,907.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.48 : 11,562.93 = 5,729.46 : x
  2. Step 2: Convert to fraction form
    8,378.48/11,562.93 = 5,729.46/x
  3. Step 3: Cross multiply
    8,378.48x = 11,562.93 × 5,729.46
  4. Step 4: Simplify right side
    8,378.48x = 66,249,344.92
  5. Step 5: Solve for x
    x = 66,249,344.92/8,378.48
  6. Step 6: Final answer
    x = 7,907.09

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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.