Home / 9,515.05-13,130.62-5,323.30

Finding the Fourth Proportional to 9,515.05, 13,130.62 and 5,323.30

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Solution

The fourth proportional to 9,515.05, 13,130.62 and 5,323.30 is: 7,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.05 : 13,130.62 = 5,323.30 : x
  2. Step 2: Convert to fraction form
    9,515.05/13,130.62 = 5,323.30/x
  3. Step 3: Cross multiply
    9,515.05x = 13,130.62 × 5,323.30
  4. Step 4: Simplify right side
    9,515.05x = 69,898,229.45
  5. Step 5: Solve for x
    x = 69,898,229.45/9,515.05
  6. Step 6: Final answer
    x = 7,346.07

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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.