Home / 9,509.55-13,123.44-5,317.80

Finding the Fourth Proportional to 9,509.55, 13,123.44 and 5,317.80

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Solution

The fourth proportional to 9,509.55, 13,123.44 and 5,317.80 is: 7,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.55 : 13,123.44 = 5,317.80 : x
  2. Step 2: Convert to fraction form
    9,509.55/13,123.44 = 5,317.80/x
  3. Step 3: Cross multiply
    9,509.55x = 13,123.44 × 5,317.80
  4. Step 4: Simplify right side
    9,509.55x = 69,787,829.23
  5. Step 5: Solve for x
    x = 69,787,829.23/9,509.55
  6. Step 6: Final answer
    x = 7,338.71

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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.