Home / 9,830.52-13,566.60-5,640.12

Finding the Fourth Proportional to 9,830.52, 13,566.60 and 5,640.12

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Solution

The fourth proportional to 9,830.52, 13,566.60 and 5,640.12 is: 7,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,830.52 : 13,566.60 = 5,640.12 : x
  2. Step 2: Convert to fraction form
    9,830.52/13,566.60 = 5,640.12/x
  3. Step 3: Cross multiply
    9,830.52x = 13,566.60 × 5,640.12
  4. Step 4: Simplify right side
    9,830.52x = 76,517,251.99
  5. Step 5: Solve for x
    x = 76,517,251.99/9,830.52
  6. Step 6: Final answer
    x = 7,783.64

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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.