Home / 10,010.70-13,815.15-6,647.70

Finding the Fourth Proportional to 10,010.70, 13,815.15 and 6,647.70

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Solution

The fourth proportional to 10,010.70, 13,815.15 and 6,647.70 is: 9,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.70 : 13,815.15 = 6,647.70 : x
  2. Step 2: Convert to fraction form
    10,010.70/13,815.15 = 6,647.70/x
  3. Step 3: Cross multiply
    10,010.70x = 13,815.15 × 6,647.70
  4. Step 4: Simplify right side
    10,010.70x = 91,838,972.66
  5. Step 5: Solve for x
    x = 91,838,972.66/10,010.70
  6. Step 6: Final answer
    x = 9,174.08

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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.