Home / 6,291.40-9,418.86-5,624.36

Finding the Fourth Proportional to 6,291.40, 9,418.86 and 5,624.36

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Solution

The fourth proportional to 6,291.40, 9,418.86 and 5,624.36 is: 8,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.40 : 9,418.86 = 5,624.36 : x
  2. Step 2: Convert to fraction form
    6,291.40/9,418.86 = 5,624.36/x
  3. Step 3: Cross multiply
    6,291.40x = 9,418.86 × 5,624.36
  4. Step 4: Simplify right side
    6,291.40x = 52,975,059.43
  5. Step 5: Solve for x
    x = 52,975,059.43/6,291.40
  6. Step 6: Final answer
    x = 8,420.23

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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.