Home / 9,810.45-13,538.48-5,830.79

Finding the Fourth Proportional to 9,810.45, 13,538.48 and 5,830.79

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Solution

The fourth proportional to 9,810.45, 13,538.48 and 5,830.79 is: 8,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.45 : 13,538.48 = 5,830.79 : x
  2. Step 2: Convert to fraction form
    9,810.45/13,538.48 = 5,830.79/x
  3. Step 3: Cross multiply
    9,810.45x = 13,538.48 × 5,830.79
  4. Step 4: Simplify right side
    9,810.45x = 78,939,936.95
  5. Step 5: Solve for x
    x = 78,939,936.95/9,810.45
  6. Step 6: Final answer
    x = 8,046.52

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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.