Home / 9,651.80-13,319.70-5,402.75

Finding the Fourth Proportional to 9,651.80, 13,319.70 and 5,402.75

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Solution

The fourth proportional to 9,651.80, 13,319.70 and 5,402.75 is: 7,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,651.80 : 13,319.70 = 5,402.75 : x
  2. Step 2: Convert to fraction form
    9,651.80/13,319.70 = 5,402.75/x
  3. Step 3: Cross multiply
    9,651.80x = 13,319.70 × 5,402.75
  4. Step 4: Simplify right side
    9,651.80x = 71,963,035.23
  5. Step 5: Solve for x
    x = 71,963,035.23/9,651.80
  6. Step 6: Final answer
    x = 7,455.92

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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.