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Finding the Fourth Proportional to 7,010.51, 9,686.79 and 5,605.79

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Solution

The fourth proportional to 7,010.51, 9,686.79 and 5,605.79 is: 7,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.51 : 9,686.79 = 5,605.79 : x
  2. Step 2: Convert to fraction form
    7,010.51/9,686.79 = 5,605.79/x
  3. Step 3: Cross multiply
    7,010.51x = 9,686.79 × 5,605.79
  4. Step 4: Simplify right side
    7,010.51x = 54,302,062.08
  5. Step 5: Solve for x
    x = 54,302,062.08/7,010.51
  6. Step 6: Final answer
    x = 7,745.81

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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.