Home / 8,317.52-11,477.72-5,173.68

Finding the Fourth Proportional to 8,317.52, 11,477.72 and 5,173.68

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Solution

The fourth proportional to 8,317.52, 11,477.72 and 5,173.68 is: 7,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.52 : 11,477.72 = 5,173.68 : x
  2. Step 2: Convert to fraction form
    8,317.52/11,477.72 = 5,173.68/x
  3. Step 3: Cross multiply
    8,317.52x = 11,477.72 × 5,173.68
  4. Step 4: Simplify right side
    8,317.52x = 59,382,050.41
  5. Step 5: Solve for x
    x = 59,382,050.41/8,317.52
  6. Step 6: Final answer
    x = 7,139.39

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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.